Lucrari publicate

LIST OF PAPERS

 

Associate Professor PhD. CATALIN ANGELO IOAN

                                               

1⁰  Thesis

 

T 1. Ioan Catalin Angelo, "Semi-Riemannian foliations" - Monograph, Evrika Publishing House, Brăila, ISBN 973-641-001-12002, 150 pages, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/aK6751dd06.pdf

 

2⁰ Published books (Ca, Cb, Cc), published guidelines (I1, I2 etc.), chapters published in collective volumes, drafted theoretical chapters, functional laboratory systems, etc. (D1, D2 etc.), where appropriate, contributing to the provision and improvement of didactic, professional activities.

 

C 1.    Ioan Cătălin Angelo, “Mathematics.01.Algebra“, Zigotto Publishers, Galați, 174 pages, 2021

 

C 2.    Ioan Cătălin Angelo, “Mathematics.02. Mathematical analysis and differential equations“, Zigotto Publishers, Galați, 174 pages, 2021

 

C 3.    Ioan Cătălin Angelo, “Mathematics.03. Linear algebra, analytical and differential geometry“, Zigotto Publishers, Galați, 366 pages, 2021

 

C 4.    Ioan Cătălin Angelo, “Mathematics.04. Probability Theory and Mathematical Statistics“, Zigotto Publishers, Galați, 362 pages, 2021

 

C 5.    Ioan Cătălin Angelo, “Mathematics.05. Numerical analysis“, Zigotto Publishers, Galați, 202 pages, 2021

 

C 6.    Ioan Cătălin Angelo, “Mathematics.06. Graph theory“, Zigotto Publishers, Galați, 110 pages, 2021

 

C 7.    Ioan Cătălin Angelo, “Mathematics.07. Special mathematics“, Zigotto Publishers, Galați, 222 pages, 2021

 

C 8.    Ioan Cătălin Angelo, “Mathematics.08. Mathematical models“, Zigotto Publishers, Galați, 320 pages, 2021

 

C 9.    Ioan Cătălin Angelo, “Mathematics.09. Famous mathematicians“, Zigotto Publishers, Galați, 96 pages, 2021

 

C 10.      Ioan Cătălin Angelo, “Mathematics.10. Contributions to the geometry of semi-Riemannian foliations“, Zigotto Publishers, Galați, 156 pages, 2021

 

 

C 11.      Ioan Cătălin Angelo, Ioan Gina, “Mathematics.11.Matheconomcs“, Zigotto Publishers, Galați, 442 pages, 2021

 

C 12.      Ioan Cătălin Angelo, “Mathematics.12. Urbanism and landscaping“, Zigotto Publishers, Galați, 114 pages, 2021

 

C 13.      Ioan Cătălin Angelo, “Mathematics.13. Studies and articles. Volume 1“, Zigotto Publishers, Galați, 338 pages, 2021

 

C 14.      Ioan Cătălin Angelo, “Mathematics.14. Studies and articles. Volume 2“, Zigotto Publishers, Galați, 328 pages, 2021

 

C 15.      Ioan Cătălin Angelo, “Mathematics.15. Studies and articles. Volume 3“, Zigotto Publishers, Galați, 328 pages, 2021

 

C 16.      Ioan Cătălin Angelo, “Mathematics.16. Studies and articles. Volume 4“, Zigotto Publishers, Galați, 338 pages, 2021

 

C 17.      Ioan Cătălin Angelo, “Mathematics.17. Studies and articles. Volume 5“, Zigotto Publishers, Galați, 318 pages, 2021

 

C 18.      Ioan Cătălin Angelo, “Mathematics.18. Studies and articles. Volume 6“, Zigotto Publishers, Galați, 270 pages, 2021

 

C 19.      Ioan Catalin Angelo, “Applied Mathematics Economics – ID-FR Course. Revised and added edition“, Danubius University Publishing House, Galati, 978-606-533-038-2, 138 pages, 2019

 

C 20.      Ioan Catalin Angelo, “Modeling the monetary-financial decision – ID-FR Course. Revised and added edition“, Danubius University Publishing House, Galati, 978-606-533-038-2, 166 pages, 2019

 

C 21.      Ioan Catalin Angelo, “Economic projects and business games – ID-FR Course. Revised and added edition“, Danubius University Publishing House, Galati, 978-606-533-038-2, 166 pages, 2019

 

C 22.      Ioan Catalin Angelo/Ioan Gina, “Methods of mathematical modeling in economics. Revised and added edition”, Zigotto Publishing House, Galati, ISBN 978-606-8303-65-6, 226 pages, 2019

 

C 23.      Ioan Catalin Angelo, “Mathematics. Revised edition“, Zigotto Publishing House, Galati, 978-973-1724-03-4, 424 pages, 2019

 

C 24.      Ioan Catalin Angelo, “THE CHANCE - BETWEEN FINITE AND INFINITE. Probability Theory and Statistics. Revised and added edition”, Zigotto Publishing House, Galati, ISBN 973-606-261-8 , 410 pages, 2019

 

C 25.      Ioan Catalin Angelo, Pușcă Corneliu Andy, Nuță Florian Marcel, Ioan Gina (coord.), “Economic development models of emerging countries”, Danubius University Publishing House, Galati, ISBN:978-606-533-0-0, 470 pages, 2019

 

C 26.      Ioan Catalin Angelo/Ioan Gina, “An equilibrium model with applications for the European Union countries”, Economic development models of emerging countries, Danubius University Publishing House, Galati, ISBN:978-606-533-0-0, 2019, pp.7-208

http://evidentacercetare.univ-danubius.ro/Surse/Set_014/PsI4n6QpHA.pdf

 

C 27.      Ioan Catalin Angelo/Andy Corneliu Pușcă/Benone Pușcă/Fănel Teodorașcu (coord.), “FOREIGN DIRECT INVESTMENT – key factor for the economic development of emerging countries”, Danubius University Press, Galati, 380 pages, 2018

 

C 28.      Ioan Cătălin Angelo, “Matematics“, Zigotto Publishing House, Galati, 978-973-1724-03-4, 486 pages, 2017

 

C 29.      Ioan Catalin Angelo, "Applied Mathematics Economics - ID-FR Course. Revised and Added Edition", Danubius University Publishing House, Galati 978-606-533-477-9, 160 pages, 2018

 

C 30.      Ioan Catalin Angelo, "Economic Statistics - ID-FR Course", Danubius University Publishing House, Galati 978-606-533-478-6, 123 pages, 2018

 

C 31.      Ioan Catalin Angelo, "THE CHANCE - BETWEEN FINITE AND INFINITE. Probability Theory and Statistics", Zigotto Publishing House, Galati, ISBN, 410 pages, 2017

 

C 32.      Ioan Catalin Angelo/Ioan Gina, "Macroeconomics", Zigotto Publishing House, Galati, ISBN 978-606-669-216-8, 226 pages, 2017

http://evidentacercetare.univ-danubius.ro/Surse/Set_012/OC0oG9h7Re.pdf

 

C 33.      Ioan Catalin Angelo/Ioan Gina, “The analysis of European Union Countries Index of Globalization from the Viewpoint of Clusters” in Innovative approaches in the management of competitiveness of business, Coord. A.Berezin, M. Bezpartochnyi, ISSN:1877-0444, pp.18-24, ISMA University Publishers, Riga, Latvia, 2016

http://evidentacercetare.univ-danubius.ro/Surse/Set_010/C0hdV1Kd3F.pdf

 

C 34.      Ioan Catalin Angelo/Ioan Gina, "Galati-Braila. Last. News. Perspectives - Analysis of the economic activity of the Danubian counties relative to the net average earning average", ISBN 978-606-533-450-2, pp. 51-74, Danubius University Publishing House, Galati, 2017

http://evidentacercetare.univ-danubius.ro/Surse/Set_012/Xh0p5jOTcB.pdf

 

C 35.      Ioan Catalin Angelo/Ioan Gina, "Prices and Competition", Zigotto Publishing House, Galati, ISBN 978-606-669-175-8, 286 pages, 2014

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/kq75Db4rW1.pdf

 

C 36.      Ioan Catalin Angelo/Ioan Alin Cristian, “Algebra”, Zigotto Publishing House, Galati, ISBN 978-606-8303-65-6, 252 pages, 2014

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/MDDJ64kU1A.pdf

 

C 37.      Ioan Catalin Angelo/Ioan Alin Cristian, “Mathematical analysis”, Zigotto Publishing House, Galati, ISBN 978-606-8303-65-6, 164 pages, 2014

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/1hO7Xz4Iao.pdf

 

C 38.      Ioan Catalin Angelo, “Mathematics“, Sinteze Publishing House, Galati, ISBN 978-606-585-071-2, 516 pages, 2012

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/SGq16KmpeF.pdf

 

C 39.      Ioan Catalin Angelo/Ioan Gina, “Mateconomics“, Zigotto Publishing House, Galati, ISBN 978-606-8303-67-0, 532 pages, 2012

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/N4fcNxwAN6.pdf

 

C 40.   Ioan Catalin Angelo/Ioan Gina, "Methods of Mathematical Modeling in Economics", Zigotto Publishing House, Galati, ISBN 978-606-8303-65-6, 322 pages, 2012

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/9T1fEcd9xV.pdf

 

C 41.      Ioan Catalin Angelo, “Elements of econometrics“, Zigotto Publishing House, Galati, ISBN 978-606-8303-30-7, 250 pages, 2011

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/4e8TPy792Z.pdf

 

C 42.      Ioan Catalin Angelo, “Mathematical fundamentals of financial engineering“, Sinteze Publishing House, Galati, ISBN 978-606-585-044-6, 180 pages, 2011

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/EWg7uOho09.pdf

 

C 43.      Ioan Catalin Angelo/Ioan Gina, "n-Microeconomics", Zigotto Publishing House, Galati, ISBN 978-606-8303-34-5, 382 pages, 2011

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/iGIv02fN4i.pdf

 

C 44.      Ioan Catalin Angelo/Ioan Gina, "n-Microeconomics. Aplications", Sinteze Publishing House, Galati, ISBN 978-606-585-045-3, 174 pages, 2011

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/w3mVSJAr57.pdf

 

C 45.      Ioan Catalin Angelo/Ioan Gina, "Methods of Mathematical Modeling in Economics", Sinteze Publishing House, Galati, ISBN 978-606-585-046-0, 300 pages, 2011

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/7k4LTj17Y8.pdf

 

C 46.      Ioan Catalin Angelo, “Mathematics applied in the economy“, DANUBIUS University Publishing House, Galati, 2010, ISBN 978-606-533-035-1, 198 pages, 2010

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/v50041BFbQ.pdf

 

C 47.      Ioan Catalin Angelo, “Modeling the financial and accounting decision“, DANUBIUS University Publishing House, Galati, 2010, ISBN 978-606-533-038-2, 96 pages, 2010

 

C 48.      Ioan Catalin Angelo/Ioan Gina, "Applied Mathematics in Micro and Macroeconomics", Sinteze Publishing House, Galati 978-606-585-015-6, 534 pages, 2010

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/02Tg31Z5J6.pdf

 

C 49.      Ioan Catalin Angelo/Ioan Gina, "Mathematical models and methods in economic activity", Sinteze Publishing House, Galati 978-606-585-014-9, 478 pages, 2010

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/v9s5SgNEx0.pdf

 

C 50.      Ioan Catalin Angelo, “Mathematical methods for modeling economic phenomena-vol.I-games theory, mathematical models in financial management, decision models“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-973-30-2496-5, 208 pages, 2009

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/33QkB52OKh.pdf

 

C 51.      Ioan Catalin Angelo, “ Mathematical methods for modeling economic phenomena-vol.II-Models and methods for optimizing the firm's business“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-973-30-2496-5, 256 pages, 2009

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Um3176m6I3.pdf

 

C 52.      Ioan Catalin Angelo, “Mathematics – I“, Sinteze Publishing House, Galati, ISBN 978-973-1917-15-3, 512 pages, 2008

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/WJ7gi3u2A1.pdf

 

C 53.      Ioan Catalin Angelo,  “ Mathematics – II“, Sinteze Publishing House, Galati, ISBN 978-973-1917-14-6, 440 pages, 2008

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/EBj938kETN.pdf

 

C 54.      Ioan Catalin Angelo, “Mathematics applied in the economy“, DANUBIUS University Publishing House, Galati, ISBN 978-973-1746-81-4, 108 pages, 2008

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/vwY6Uy3Hb7.pdf

 

C 55.      Ioan Catalin Angelo, “Modeling the financial and accounting decision“, DANUBIUS University Publishing House, Galati, ISBN 978-973-1746-82-1, 110 pages, 2008

 

C 56.      Ioan Catalin Angelo, “Economic projects and business games“, DANUBIUS University Publishing House, Galati, ISBN 978-606-533-003-0, 88 pages, 2008

 

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/B9shlK6o6P.pdf

 

C 57.      Ioan Catalin Angelo, “Better manage public funds”, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-973-30-2339-5, 2008

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/EB1vmN7293.pdf

 

C 58.      Ioan Catalin Angelo, “High performance management in the Galati business environment”, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-973-30-2422-4, 2008

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/I7GJ2S6637.pdf

 

C 59.      Ioan Catalin Angelo, “Mathematics“, Sinteze Publishing House, Galati, ISBN 978-973-7772-77-0, 384 pages, 2007

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/58PB2Mb1K9.pdf

 

C 60.      Ioan Catalin Angelo, “Applications of mathematics in the economy“, Sinteze Publishing House, Galati, ISBN 978-973-7772-76-3, 216 pages, 2007

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/458HKw9fw3.pdf

 

C 61.      Ioan Catalin Angelo, “Mathematics - introductory course for economists“, Sinteze Publishing House, Galati, ISBN 978-973-7772-55-8, 640 pages, 2006

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Sw3F2h548M.pdf

 

C 62.      Ioan Catalin Angelo, “Economic Applications of Mathematics“, Zigotto Publishing House, Galati, ISBN 978-973-1724-03-4, 198 pages, 2006

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/a7eVEyiB9f.pdf

 

C 63.      Ioan Catalin Angelo, “Urbanism and landscaping“, Zigotto Publishing House, Galati, ISBN 978-973-1724-05-8, 114 pages, 2006

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/u3nF7J6Lzf.pdf

 

C 64.      Ioan Catalin Angelo, “Mathematics applicable in the economy“, Sinteze Publishing House, Galati, 2005, 488 pages, ISBN 973-7772-31-8

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/p4w2w87w25.pdf

 

C 65.      Ioan Catalin Angelo, “Matematici aplicate în economie – B“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1841-4, 294 pages (ediția a doua), 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Fsr85B540y.pdf

 

C 66.      Ioan Catalin Angelo/Păunescu Coriolan/Turtureanu Anca Gabriela, “Current management - from theory to mathematical modeling“, Sinteze Publishing House, Galati, ISBN 973-7772-41-5, 380 pages, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/p9hpI7TO9w.pdf

 

C 67.      Ioan Catalin Angelo/Păunescu Coriolan/Turtureanu Anca Gabriela, “Fundamental marketing elements“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1186-X, 244 pages, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/3IPZ829q3s.pdf

 

C 68.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Current issues of services and tourism“, Zigotto Publishing House, Galati, ISBN 973-87489-8-4, 332 pages, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/b2q5QM8w1F.pdf

 

C 69.      Ioan Catalin Angelo, “Office systems and expertise“, Zigotto Publishing House, Galati, ISBN 973-87489-6-8, 166 pages, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/nakmeDotf0.pdf

 

C 70.      Ioan Catalin Angelo, “ Mathematics applied in the economy – A“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1841-4, 473 pages, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/oP208JrN9e.pdf

 

C 71.      Ioan Catalin Angelo, “ Mathematics applied in the economy – B“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1841-4, 294 pages, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/m8wl5ea122.pdf

 

C 72.      Ioan Catalin Angelo, “Mathematics applied in the economy – C”, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1841-4, 284 pages, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/6piF7aIlm5.pdf

 

C 73.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Services economy“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-1374-5, 146 pages, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/hTBl7W1112.pdf

 

C 74.      Ioan Catalin Angelo, “Mathematics I”, Academic Danubius Foundation Publishing House, Galati, ISBN 973-8409-05-5, 132 pages, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/4qqlpFt817.pdf

 

C 75.      Ioan Catalin Angelo, “ Mathematics II“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-8409-29-2, 116 pages, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/M75lbA4oF0.pdf

 

C 76.      Ioan Catalin Angelo/Turtureanu Anca Gabriela/Horneț Carmen Gabriela, “Natural resources economy“, Didactic and Pedagogical Publishing House, Bucharest, ISBN 973-30-2394-9, 134 pages, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Xn0Nd1ByNA.pdf

 

C 77.      Ioan Catalin Angelo/Ionescu Victor Romeo/Turtureanu Anca Gabriela, “Grid tests for the admission exam“, Universitatea „Danubius” Galati, 74 pages, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/GR9g828rhj.pdf

 

C 78.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “ALGORITHMS of mathematical modeling of company management“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-8409-17-9, 306 pages, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/H0L4F3jX16.pdf

 

C 79.      Ioan Catalin Angelo, “Mathematics“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85587-7-8, 392 pages, 2002

 

C 80.      Ioan Catalin Angelo, “Economic Mathematics - Higher Algebra“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85101-7-1, 374 pages, 2001

 

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/fe5FUD3GHX.pdf

 

C 81.      Ioan Catalin Angelo, “Economic Mathematics - Mathematical Analysis, Differential Equations, Probability Theory“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85101-8-X, 472 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/W3DojeSpId.pdf

 

C 82.      Ioan Catalin Angelo, “Financial Mathematics“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85587-3-5, 182 pages, 2001

 

C 83.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Economy of tourism and the environment-applications“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85101-3-9, 116 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/J72s50954D.pdf

 

C 84.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Urbanism and landscaping“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85216-2-9, 170 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/JjV4TL2eg6.pdf

 

C 85.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “ Urbanism and landscaping - applications“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85216-3-7, 70 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/rZG0O4GnS0.pdf

 

C 86.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Economic geography-applications“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85216-8-8, 206 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Ye68hS66Ux.pdf

 

C 87.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Services economy-applications“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85216-7-X, 96 pages, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/g8gev5hMZV.pdf

 

C 88.      Ioan Catalin Angelo, “Mathematical modeling of company management“, Evrika Publishing House, Braila, ISBN 973-85101-4-7, 298 pages, 2000

 

C 89.      Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Economy of tourism and the environment“, Academic Danubius Foundation Publishing House, Galati, ISBN 973-85101-2-0, 280 pages, 2000

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/EAPQERA13b.pdf

 

C 90.      Ioan Catalin Angelo, “Economic Mathematics“, Evrika Publishing House, Braila, ISBN 973-9499-95-3, 474 pages, 1999

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/XzY54BiM83.pdf

 

C 91.      Ioan Catalin Angelo, “Economic Mathematics - Problems Collection“, Evrika Publishing House, Braila, ISBN 973-8052-01-7, 196 pages, 1999

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/DJDa3DxnP8.pdf

 

C 92.      Ioan Catalin Angelo, “Financial Mathematics“, Evrika Publishing House, Braila, ISBN 973-9499-96-1, 126 pages, 1999

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/TC43bb52x6.pdf

 

C 93.      Ioan Catalin Angelo, “Financial Mathematics - Problems Collection“, Evrika Publishing House, Braila, ISBN 973-8052-00-9, 118 pages, 1999

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/IyI1635m45.pdf

 

C 94.      Ioan Catalin Angelo, “Mathematics applied in the economy“, Vol. I, Economic Independence Publishing House, Braila, ISBN 973-97271-8-2, 284 pages, 1996

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/Sg9k2fp1EH.pdf

 

C 95.      Ioan Catalin Angelo, “Mathematics applied in the economy-applications“, Vol. II, Economic Independence Publishing House, Braila, ISBN 973-97271-9-0, 140 pages, 1996

http://evidentacercetare.univ-danubius.ro/Surse/Set_011/gL4E57vLwA.pdf

 

3⁰ Articles, published studies:

a)     in recognized internationally ISI journals or indexed in international databases specific to the field, making a journals selection process based on Performance Criteria (Ris):

 

Ris 1. Ioan Cătălin Angelo, “Determination of Unconditional Extremes of the Functions of Fundamental Symmetric Polynomials”, Acta Universitatis Danubius. Oeconomica, Vol.18, Nr.1, ISSN:2065-0175, pp.225-237, factor de impact REPEC:.065, 2019

https://dj.univ-danubius.ro/index.php/AUDOE/article/view/1598/1836

 

Ris 2. Ioan Cătălin Angelo/Ioan Gina, “An Equilibrium Model with Applications for some of the North and Central American Countries”, Acta Universitatis Danubius. Oeconomica, Nr.7, Vol.15, ISSN:2065-0175, pp.330-439, factor de impact REPEC:.065, 2019

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/6391/5374

 

Ris 3. Ioan Cătălin Angelo/Ioan Gina, “The Dependence of Net Average Wage on Labour Productivity in Romania”, Euroeconomica Vol.39, nr. 2, ISSN 1582-8859, pp. 7-47, 2020

http://dj.univ-danubius.ro/index.php/EE/article/view/288/474

 

Ris 4. Ioan Cătălin Angelo, “A Method of Determining Divisibility with Any Natural Number”, Acta Universitatis Danubius. Oeconomica, Nr.2, Vol.16, ISSN:2065-0175, pp.311-368, factor de impact REPEC:.065, 2020

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/6634/6205

 

Ris 5. Ioan Cătălin Angelo/Ioan Gina, “An Equilibrium Model with Applications for some of the South American countries”, Acta Universitatis Danubius. Oeconomica, Nr.1, Vol.16, ISSN:2065-0175, pp.139-194, impact factor REPEC:.065, 2019

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/6443/5552

 

Ris 6. Ioan Catalin Angelo/Ioan Gina, “An Equilibrium Model with Applications for Some of the Asian and Australia-Oceania Countries - Part One”, Euroeconomica Vol.38, nr. 2, ISSN 1582-8859, pp. 97-226, 2019

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/6311/5165

Ris 7. Ioan Catalin Angelo/Ioan Gina, “An Equilibrium Model with Applications for Some of the Asian and Australia-Oceania Countries - Part Two”, Acta Universitatis Danubius. Oeconomica, Nr.6, Vol.15, ISSN:2065-0175, pp.302-456, impact factor REPEC:.065, 2019

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/6295/5156

Ris 8. Ioan Catalin Angelo/Ioan Gina, “An Equilibrium Model with Applications for the European Union Countries”, Acta Universitatis Danubius. Oeconomica, Nr.1, Vol.15, ISSN:2065-0175, pp.265-409, impact factor REPEC:.065, 2019

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/5703/4862

Ris 9. Ioan Catalin Angelo/Ioan Gina, “An Unified Consumption and Production Model for a Closed Economy”, Journal of Accounting and Management, Nr.2, Vol.8, ISSN:2284-9459, pp.5-10, 2019

http://journals.univ-danubius.ro/index.php/jam/article/view/4470/4775

Ris 10. Ioan Catalin Angelo/Ioan Gina, “Analysis of the main economic indicators of the World”, Acta Universitatis Danubius, Oeconomica – special issue, nr.2, vol.14, ISSN 2065-0175, pp. 195-461

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4851/4441

Ris 11. Ioan Catalin Angelo/Ioan Gina, “An Analysis of Gross Domestic Product from Foreign Direct Investments, Gross Capital Formation and Taxation”, Acta Universitatis Danubius, Oeconomica – special issue, nr.2, vol.14, ISSN 2065-0175, pp. 64-194

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4741/4438

Ris 12. Ioan Catalin Angelo/Ioan Gina, “Labor analysis for developing countries and regions of the World – Part one”, Acta Universitatis Danubius, Oeconomica, nr.5, vol.14, ISSN 2065-0175, pp. 299-534

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4811/4598

Ris 13. Ioan Catalin Angelo/Ioan Gina, “Labor analysis for developing countries and regions of the World – Part two”, Acta Universitatis Danubius, Oeconomica, nr.7, vol.14, ISSN 2065-0175, pp.428-654

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4831/4802

Ris 14. Ioan Catalin Angelo, “Demographics and Poverty analysis for developing countries and regions of the World for developing countries and regions of the World – Part one”, Acta Universitatis Danubius, Oeconomica, nr.4, vol.14, ISSN 2065-0175, pp.395-566

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4809/4525

Ris 15. Ioan Catalin Angelo, “Demographics and Poverty analysis for developing countries and regions of the World for developing countries and regions of the World – Part two”, Acta Universitatis Danubius, Oeconomica, nr.5, vol.14, ISSN 2065-0175, pp. 533-716

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4816/4599

Ris 16. Ioan Catalin Angelo, “Demographics and Poverty analysis for developing countries and regions of the World for developing countries and regions of the World – Part three”, Acta Universitatis Danubius, Oeconomica, nr.6, vol.14, ISSN 2065-0175, pp. 344-495

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4827/4680

Ris 17. Ioan Catalin Angelo, “Global Education Level Analysis - Part one”, Acta Universitatis Danubius, Oeconomica, nr.4, vol.14, ISSN 2065-0175, pp. 156-394

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4808/4524

Ris 18. Ioan Catalin Angelo, “Global Education Level Analysis - Part two”, Acta Universitatis Danubius, Oeconomica, nr.4, vol.14, ISSN 2065-0175, pp. 103-280

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4817/4675

Ris 19. Ioan Catalin Angelo, “Global Education Level Analysis – Part three”, Acta Universitatis Danubius, Oeconomica, nr.7, vol.14, ISSN 2065-0175, pp.272-427

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4829/4801

Ris 20. Ioan Catalin Angelo, “Global Education Level Analysis - Part four”, Acta Universitatis Danubius, Oeconomica, nr.2, vol.15, ISSN 2065-0175, pp.307-439

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4830/4889

Ris 21. Ioan Catalin Angelo/Ioan Gina, “Analysis and Forecast GDP of Romania during 1995-2014”, Journal of Accounting and Management, Nr.2, Vol.7, ISSN:2284-9459, pp.26-125

http://journals.univ-danubius.ro/index.php/jam/article/view/4406/4184

 

Ris 22. Ioan Catalin Angelo/Ioan Gina, “The analysis of the number of employees, net nominal earnings and labour productivity in Romania“, Euroeconomica nr. 2, ISSN 1582-8859, pp. 179-194, 2017

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/4030/4285

 

Ris 23. Ioan Catalin Angelo/Ioan Gina, “An analysis of two types of regressions for the same dataset”, Acta Universitatis Danubius, Oeconomica, nr.3, vol.14, ISSN 2065-0175, pp. 312-318

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4479/4481

Ris 24. Ioan Catalin Angelo/Ioan Gina, “On certain conditions for generating production functions - II”, Journal of Accounting and Management, Nr.1, Vol.7, ISSN:2284-9459, pp.58-63

http://journals.univ-danubius.ro/index.php/jam/article/view/3983/4176

 

Ris 25. Ioan Catalin Angelo/Ioan Gina, “The determination of a graph center”, Journal of Accounting and Management, Nr.1, Vol.8, ISSN:2284-9459, pp. 23-26

http://journals.univ-danubius.ro/index.php/jam/article/view/4464/4708

 

Ris 26. Ioan Catalin Angelo, “Again about Andrica’s conjecture...”, Acta Universitatis Danubius, Oeconomica, nr.3, vol.13, ISSN 2065-0175, pp.198-202

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3940/4092

 

Ris 27. Ioan Catalin Angelo, “Analysis of natural movement of romanian population during 2007-2014 - I”, Acta Universitatis Danubius, Oeconomica, nr.3, vol.13, ISSN 2065-0175, pp.53-208

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4032/4139

 

Ris 28. Ioan Catalin Angelo, “Analysis of natural movement of romanian population during 2007-2014 - II”, Acta Universitatis Danubius, Oeconomica, nr.5, vol.13, ISSN 2065-0175, pp. 253-400

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4033

 

Ris 29. Ioan Catalin Angelo, “Analysis of natural movement of romanian population during 2007-2014 - III”, Acta Universitatis Danubius, Oeconomica, nr.6, vol.13, ISSN 2065-0175, pp. 5-130

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4034

 

Ris 30. Ioan Catalin Angelo, “Analysis of natural movement of romanian population during 2007-2014 - IV”, Acta Universitatis Danubius, Oeconomica, nr.1, vol.14, ISSN 2065-0175, pp. 243-354

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/4035/4411

 

Ris 31. Ioan Catalin Angelo, “Some aspects of production functions differential geometry”, Acta Universitatis Danubius, Oeconomica, nr.2, vol.13, ISSN 2065-0175, pp. 234-245

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3335/3972

Ris 32. Ioan Catalin Angelo/Ioan Gina, “The analysis of dependence of household deposits and loans from the money supply”, Acta Universitatis Danubius, Oeconomica, nr.2, vol.13, ISSN 2065-0175, pp. 185-202

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3331/3968

Ris 33. Ioan Catalin Angelo/Ioan Gina, “The Relationship between Spatial Interdependencies in the European Union and the Trade-II”, Acta Universitatis Danubius, Oeconomica, nr.1, vol.13, ISSN 2065-0175, pp.51 – 144

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3317/3850

 

Ris 34. Ioan Catalin Angelo/Ioan Gina, “The Relationship between Spatial Interdependencies in the European Union and the Trade-I”, Acta Universitatis Danubius, Oeconomica, nr.6, vol.12, ISSN 2065-0175, pp.5 – 118

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3313/3726

 

Ris 35. Ioan Catalin Angelo/Ioan Gina, “A Mathematical Model of Working Time and Leisure“, Euroeconomica nr.2 (35), ISSN 1582-8859, pp.41-47, 2016

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/3319/3688

Ris 36. Ioan Catalin Angelo/Ioan Gina, “An Analysis of a Duopoly with Incomplete Information”, Acta Universitatis Danubius, Oeconomica, nr.5, vol.12, ISSN 2065-0175, pp.5 – 18

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3328/3570

 

Ris 37. Ioan Catalin Angelo/Ioan Gina, “An Equilibrium Model for the Romanian Economy”, Journal of Accounting and Management, Nr.2, Vol.6, ISSN:2284-9459, pp.41 – 75

http://journals.univ-danubius.ro/index.php/jam/article/view/3376/3537

 

Ris 38. Ioan Catalin Angelo/Ioan Gina, “Aspects of spatial interdependencies in the European Union”, Journal of Accounting and Management, Nr.2, Vol.6, ISSN:2284-9459, pp.21 -27

http://journals.univ-danubius.ro/index.php/jam/article/view/3295/3468

 

Ris 39. Ioan Catalin Angelo/Toderașcu Diana, “The Role of Fashion Style in Creating the First Impression”, Acta Universitatis Danubius, Oeconomica, nr.4, vol.12, ISSN 2065-0175, pp.255-275

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3321/3458

 

Ris 40. Ioan Catalin Angelo/Ioan Gina, “The Determination of Spatial Interdependencies in the European Union”, Acta Universitatis Danubius, Oeconomica, nr.4, vol.12, ISSN 2065-0175, pp.133-152

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3294/3450

 

Ris 41. Ioan Catalin Angelo/Ioan Gina, “Considerations on the Laffer curve”, Journal of Accounting and Management, Nr.1, Vol.6, ISSN:2284-9459, pp.11-16

http://journals.univ-danubius.ro/index.php/jam/article/view/3193/3261

 

Ris 42. Ioan Catalin Angelo/Ioan Gina, “On Certain Conditions for Generating Production Functions - I“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.12, ISSN 2065-0175, pp.129-150

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3192/3112

Ris 43. Ioan Catalin Angelo, “About the Non-Research Methodology ...“, Journal of Accounting and Management, nr.2, vol.5, ISSN: 2284 – 9459, pp.96-99

http://www.journals.univ-danubius.ro/index.php/jam/article/view/3133

 

Ris 44. Ioan Catalin Angelo/Ioan Gina, “The Complete Theory of Generalized CES Production Function“, Journal of Accounting and Management, nr.2, vol.5, ISSN: 2284 – 9459, pp.15-37

http://journals.univ-danubius.ro/index.php/jam/article/view/2702

 

Ris 45. Ioan Catalin Angelo/Ioan Alin Cristian, “A study of continued fractions using software tools – I“, Journal of Accounting and Management, nr.1, vol.5, ISSN: 2284 – 9459, pp.23-27

http://journals.univ-danubius.ro/index.php/jam/article/view/2489

 

Ris 46. Ioan Catalin Angelo, “About rigor, research and teaching in Romanian economy“, Journal of Accounting and Management, nr.1, vol.5, ISSN: 2284 – 9459, pp.35-41

http://journals.univ-danubius.ro/index.php/jam/article/view/2859

 

Ris 47. Ioan Catalin Angelo/Ioan Alin Cristian, “A study of integers using software tools – I“, Acta Universitatis Danubius, Oeconomica, nr.3, vol.11, ISSN 2065-0175, pp.197-202

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2475/2441

 

Ris 48. Ioan Catalin Angelo/Ioan Alin Cristian, “A study of integers using software tools – II“, Journal of Accounting and Management, nr.3, vol.5, ISSN: 2284 – 9459, pp.69-74

http://journals.univ-danubius.ro/index.php/jam/article/view/2485

 

Ris 49. Ioan Catalin Angelo/Ioan Alin Cristian, “A study of integers using software tools – III“, Acta Universitatis Danubius, Oeconomica, nr.4, vol.11, ISSN 2065-0175, pp.41-44

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2486

 

Ris 50. Ioan Catalin Angelo/Ioan Alin Cristian, “A conjecture concerning prime numbers“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, ISSN 2065-0175, pp.241-244

 http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2470

 

Ris 51. Ioan Catalin Angelo/Ioan Gina, “A type of a rational production function“, Acta Universitatis Danubius, Oeconomica, nr.5, vol.10, ISSN 2065-0175, pp.59-67

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2446

 

Ris 52. Ioan Catalin Angelo, “A New Approach to Utility Function“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, 2015, ISSN 2065-0175, pp.193-222

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2703

 

Ris 53. Ioan Catalin Angelo/Ioan Alin Cristian, “A Conjecture Concerning Prime Numbers“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, 2015, ISSN 2065-0175, pp.241-244

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2470

 

Ris 54. Ioan Catalin Angelo/Ioan Gina, “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2675

 

Ris 55. Ioan Catalin Angelo/Ioan Alin Cristian, “About short-term costs and long-term costs“, Journal of Accounting and Management, nr.2, vol.4, ISSN: 2284 – 9459, pp.61-68

http://journals.univ-danubius.ro/index.php/jam/article/view/2464

 

Ris 56. Ioan Catalin Angelo/Ioan Alin Cristian, “About Andrica’s conjecture“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11,2015, ISSN 2065-0175, pp.149-153

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2465

 

Ris 57. Ioan Catalin Angelo/Ioan Gina, “Generalized Cobb-Douglas function for two inputs and linear elasticity“, Acta Universitatis Danubius, Oeconomica, nr.6, vol.10, ISSN 2065-0175, pp.58-66

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2439

 

Ris 58. Ioan Catalin Angelo/Ioan Gina, “Generalized Cobb-Douglas function for three inputs and linear elasticity“, Journal of Accounting and Management, nr.2, vol.4, ISSN: 2284 – 9459, pp.17-22

http://journals.univ-danubius.ro/index.php/jam/article/view/2440

 

Ris 59. Ioan Catalin Angelo/Ioan Gina, “ An analysis of the substitution effect and of revenue effect in the case of the consumer’s theory provided with an Allen utility function“, Journal of Accounting and Management, nr.3, vol.4, ISSN: 2284 – 9459, pp.15-19

http://journals.univ-danubius.ro/index.php/jam/article/view/27084

 

Ris 60. Ioan Catalin Angelo/Ioan Gina, “The Localization Problem“, Euroeconomica nr.2 (33), ISSN 1582-8859, pp.141-148

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/2434/2296

 

Ris 61. Ioan Catalin Angelo/Ioan Gina, “Evolution and Consequences of Economic Crisis in Romania“, Euroeconomica nr.2 (34), ISSN 1582-8859, pp.161-189, 2015

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/2511/3036

 

Ris 62. Ioan Catalin Angelo/Ioan Alin Cristian, “Stackelberg model for linear marginal costs”, Acta Universitatis Danubius, Oeconomica, nr.5, vol.11, ISSN 2065-0175, pp.67-71

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/3038

 

Ris 63. Ioan Catalin Angelo/Ioan Alin Cristian, “A rational production function“, Acta Universitatis Danubius, Oeconomica, nr.4, vol.10, ISSN 2065-0175, pp.197-207

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2445/2190

 

Ris 64. Ioan Catalin Angelo/Ioan Gina, “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784, impact factor (domain): 1,128, impact factor: 0,21365, relative influence score (domain): 0,746, relative influence score (magazine): 0,2882

http://www.tandfonline.com/doi/abs/10.1080/13504851.2011.564117

Citation in: Vilcu G.E., “On Homogeneous Production Functions with Proportional Marginal Rate of Substitution” în Mathematical Problems in Engineering, U.S.A., 2013, Relative impact factor 0,777

 

Ris 65. Ioan Catalin Angelo,  “Degenerate submanifolds of Semi-Riemannian manifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp.1-7, 1997

http://siba2.unile.it/bib1index/10000664.IDX

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:0904.53020&format=complete

http://www.zentralblatt-math.org/zmath/en/citation/?q=an:01156756&type=pdf&format=complete

Citation in G. Gemelli, “The Mathematical Theory of Gravitational Discontinuity Hypersurfaces”, General Relativity and Gravitation, 2002, Springer

Citation in G. Gemelli, “Observer-dependent Gauss-Codazzi formalism for null hypersurfaces in the space-time”, Journal of Geo metry and Physics, 2002, Elsevier

Ris 66. Ioan Catalin Angelo,  “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp. 18-30, 1997

http://siba2.unile.it/bib1index/10000664.IDX

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:0904.53021&format=complete

http://www.zentralblatt-math.org/zmath/en/citation/?q=an:01156758&type=pdf&format=complete

Citation in E. Yasar, A.C. Coken, A. Yucesan, “Totally umbilical lightlike hypersurfaces in semi-riemannian manifold with semi-symmetric metric connection”, International Journal of Pure and Applied Mathematics, vol.23, No.3, 2005, pp.379-390

Ris 67. Ioan Catalin Angelo,  “Totally geodesic foliations on Semi-Riemannian manifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp.31-34, 1997

http://siba2.unile.it/bib1index/10000664.IDX

http://zmath.impa.br/cgi-bin/zmen/ZMATH/en/quick.html?first=1&maxdocs=3&au=Ioan%2C+C&type=pdf&format=short

http://zmath.impa.br/cgi-bin/zmen/ZMATH/en/quick.html?first=1&maxdocs=3&bi_op=contains&type=pdf&an=0910.53018&format=complete

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:0910.53018&format=complete

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:01156759&type=pdf&format=complete

Ris 68. Ioan Catalin Angelo,  “Minimal foliations on semi-Riemannian manifolds”, Tensor N.S. Japan, vol.58, ISSN 0040-3504, pp.137-142, 1997

http://zmath.impa.br/cgi-bin/zmen/ZMATH/en/quick.html?first=1&maxdocs=3&au=Ioan%2C+C&type=pdf&format=short

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:1034.53025&format=complete

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:01875736&type=pdf&format=complete

Ris 69. Ioan Catalin Angelo,  “Totally geodesic foliations and minimal foliations of the Semi-Riemannian manifolds”, Revue Roumaine de Mathematiques pures et appliquees, Tome XLII, Nr. 3-4, ISSN 0035-3965, pp.281-299, 1997

http://zmath.impa.br/cgi-bin/zmen/ZMATH/en/quick.html?first=1&maxdocs=3&au=Ioan%2C+C&type=pdf&format=short

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:0924.53020&format=complete

http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:01314938&type=pdf&format=complete

Ris 70. Ioan Catalin Angelo,  “Totally Umbilical Lightlike Submanifolds”, Bulletin Mathematique de la Societe des Sciences Mathematiques de Roumanie, Tome 37 (87), Nr.1-4, ISSN 1220-3874, pp.151-172, 1996

http://www.zentralblatt-math.org/zmath/en/citation/?q=an:0884.53044&format=complete

http://www.zentralblatt-math.org/zmath/en/citation/?q=an:01089919&type=pdf&format=complete

 

Ris 71. Ioan Catalin Angelo,  “Education and Research Institutions. The Professional Orientation Analysis of High School Students“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.10, ISSN 2065-0175, pp.265-275, 2014

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2370

 

Ris 72. Ioan Catalin Angelo/Ioan Gina, “Mathematics and Microeconomics“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.10, ISSN 2065-0175, pp.100-108, 2014

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/2275/2086

 

Ris 73. Ioan Catalin Angelo, “The behavior of a polynomial regression under a variables transformation“,Journal of Accounting and Management, nr.2, vol.3, ISSN: 2284 – 9459, pp.5-18, 2013

http://journals.univ-danubius.ro/index.php/jam/article/view/1811/1924

 

Ris 74. Ioan Catalin Angelo/Ioan Gina, “The evolution of GDP in USA using cyclic regression analysis“,Journal of Accounting and Management, nr.1, vol.3, ISSN: 2284 – 9459, pp.21-47, 2013

http://journals.univ-danubius.ro/index.php/jam/article/view/1728/1921

 

Ris 75. Ioan Catalin Angelo/Ioan Gina, “A Mathematical Model of an Open Economy with Applications in Romania“, Acta Universitatis Danubius, Oeconomica, nr.5, vol.9, ISSN 2065-0175, pp.103-170, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1729

 

Ris 76. Ioan Catalin Angelo/Ioan Gina, “The Evolution of GDP in USA Using Polynomial Regression Analysis“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.9, ISSN 2065-0175, pp.61-73, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1853

 

Ris 77. Ioan Catalin Angelo/Ioan Gina, “ The LSM adjustment method of time series“, Euroeconomica nr.3 (32), ISSN 1582-8859, pp.150-155, 2013

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/1968/1896

 

Ris 78. Ioan Catalin Angelo/Ioan Gina, “The Reduction of Quadratic Forms to the Normal Form with Applications for Production Functions”, Acta Universitatis Danubius, Oeconomica, nr.2, vol.9, ISSN 2065-0175, pp.120-152, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1681

 

Ris 79. Ioan Catalin Angelo, “On Homogeneous Functions”, Acta Universitatis Danubius, Oeconomica, nr.2, vol.9, ISSN 2065-0175, pp.166-175, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1692/1554

 

Ris 80. Ioan Catalin Angelo/Ioan Gina, „Romania's Financial Market and Foreign Trade Impaction”, Acta Universitatis Danubius, Oeconomica, nr.3, vol.9, ISSN 2065-0175, pp.100-115, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1695/1602

 

Ris 81. Ioan Catalin Angelo/Ioan Gina, “An analysis on the net export dependence relative to GDP and the consumer demand for Romania during 2001-2011“, Euroeconomica nr.4 (31), ISSN 1582-8859, pp.98-105, 2012

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/1489

 

Ris 82. Ioan Catalin Angelo/Ioan Gina, “An analysis on the net export dependence relative to GDP and the consumer demand for Romania during 2001-2011“, Euroeconomica nr.4 (31), ISSN 1582-8859, pp.98-105, 2012

http://journals.univ-danubius.ro/index.php/euroeconomica/article/view/1489

 

Ris 83. Ioan Catalin Angelo/Ioan Gina, “An analysis on the investment demand dependence relative to GDP and the interest rate for Romania during 2001-2011“,Journal of Accounting and Management, nr.2, vol.2, ISSN: 2284 – 9459, pp.23-31, 2012

http://journals.univ-danubius.ro/index.php/jam/article/view/1486

 

Ris 84. Ioan Catalin Angelo/Ioan Gina, “An analysis on taxes dependence relative to GDP for Romania during 2001-2011“,Journal of Accounting and Management, nr.2, vol.2, ISSN: 2284 – 9459, pp.23-31, 2012

http://journals.univ-danubius.ro/index.php/jam/article/view/1485

 

Ris 85. Ioan Catalin Angelo/Ioan Gina, “On the General Theory of Production Functions“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.8, ISSN 2065-0175, pp.223-236, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1035

 

Ris 86. Ioan Catalin Angelo/Ioan Gina, “The Equilibrium Analysis of a Closed Economy Model with Government and Money Market Sector - II“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.8, ISSN 2065-0175, pp.127-143, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1440

 

Ris 87. Ioan Catalin Angelo/Ioan Gina, “An Analysis on the Consumer Demand Dependence Relative to the Disposable Income for Romania during 2001-2011“,Acta Universitatis Danubius, Oeconomica, nr.6, vol.8, ISSN 2065-0175, pp.114-123, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1487

 

Ris 88. Ioan Catalin Angelo/Ioan Gina, “An Analysis on the Money Demand Dependence Relative to GDP and the Interest Rate for Romania during 2001-2011“,Acta Universitatis Danubius, Oeconomica, nr.6, vol.8, ISSN 2065-0175, pp.147-156, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1488

 

Ris 89. Ioan Catalin Angelo/Ioan Gina, “An Equilibrium Model for an Open Economy. Romania’s Case“,Acta Universitatis Danubius, Oeconomica, nr.1, vol.9, ISSN 2065-0175, pp.102-125, 2013

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1683

 

Ris 90. Ioan Catalin Angelo/Ioan Gina, “The Problem of Efficiency of the Consumption or Production“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.8, ISSN 2065-0175, pp.117-125, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1034

Ris 91. Ioan Catalin Angelo/Ioan Gina, “Discussions on n Substitutable Goods Production and Consumption“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.8, ISSN 2065-0175, pp.168-176, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1122

Ris 92. Ioan Catalin Angelo, “Considerations on the Hicks effect for n consumer’s goods“, Euroeconomica nr.2 (31), ISSN 1582-8859, pp.116-126, 2012

http://www.ceeol.com/aspx/issuedetails.aspx?issueid=18dfed66-f775-450d-91e6-eb43bae6e048&articleId=25a722d9-2b5c-4dcd-af08-6f566468499d

 

Ris 93. Ioan Catalin Angelo/Ioan Gina, “The Consumer's Budget from a Geometrically Point of View“,Journal of Accounting and Management, nr.1, vol.2, ISSN: 2284 – 9459, pp.23-30, 2012

http://www.journals.univ-danubius.ro/index.php/jam/article/view/1377

 

Ris 94. Ioan Catalin Angelo/Ioan Gina, “A method of choice of the importance coefficients in the Electre method“,Journal of Accounting and Management, nr.2, vol.1, ISSN: 2284 – 9459, pp.5-11, 2011

http://www.journals.univ-danubius.ro/index.php/jam/article/viewFile/1343/1129

Citation in M. Nagy, J. Miranda, “Computer Application for Interactive Teaching of Decision Making Methods”, 3rd World Conference on Information Technology (WCIT-2012), Vol.03, 2013, pp. 1584-1589

 

Ris 95. Ioan Catalin Angelo/Ioan Gina, “An adjustment of the Electre method for the case of intervals“,Journal of Accounting and Management, nr.2, vol.1, ISSN: 2284 – 9459, pp.53-61, 2011

http://journals.univ-danubius.ro/index.php/jam/article/view/1355

 

Ris 96. Ioan Catalin Angelo/Ioan Gina, “The Complete Solution of the Core-Periphery Model for two Regions Using Successive Approximations“,Acta Universitatis Danubius, Oeconomica, nr.1, vol.8, ISSN 2065-0175, pp.95-106, 2012

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/951/1083

 

Ris 97. Ioan Catalin Angelo/Ioan Gina, “An Analysis of the Substitution Effect and of Revenue Effect in the Case of the Consumer’s Theory Provided with a CES Utility Function“,Acta Universitatis Danubius, Oeconomica, nr.1, vol.8, ISSN 2065-0175, pp.164-175, 2012

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/950

 

Ris 98. Ioan Catalin Angelo/Ioan Gina, “The Consumer’s Behavior after the Preferences Nature“,Acta Universitatis Danubius, Oeconomica, nr.2, vol.8, ISSN 2065-0175, pp.127-138, 2012

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/1024/1117

 

Ris 99. Ioan Catalin Angelo/Ioan Gina, “Intellectual Property Rights in the Era of Information Society“,Acta Universitatis Danubius, Oeconomica, nr.2, vol.8, ISSN 2065-0175, pp.169-174, 2012

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/952/1120

 

Ris 100. Ioan Catalin Angelo/Ioan Gina, “A method of choice of the best alternative in the multiple solutions case in the Games Theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://journals.univ-danubius.ro/index.php/jam/article/viewFile/1328/1122

 

Ris 101. Ioan Catalin Angelo/Ioan Gina, “Analysis of the Evolution of the Gross Domestic Product by Means of Cyclic Regressions“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.7, ISSN 2065-0175, pp.118-130, 2011

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/view/948

 

Ris 102. Ioan Catalin Angelo/Ioan Gina, “Aspects of Price Discrimination in the Monopoly“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.7, ISSN 2065-0175, pp.103 - 114, 2011

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/view/1030

 

Ris 103. Ioan Catalin Angelo/Ioan Gina, “General Considerations on the Oligopoly“,Acta Universitatis Danubius, Oeconomica, nr.3, vol.8, ISSN 2065-0175, pp.115 - 137, 2012

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/1033/1171

 

Ris 104. Ioan Catalin Angelo/Ioan Gina, “About the Economical Equilibrium“,Acta Universitatis Danubius, Oeconomica, nr.6, vol.7, ISSN 2065-0175, pp.129 - 140, 2011

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/view/1028

 

Ris 105. Ioan Catalin Angelo/Ioan Gina, “The Demand’s Behavior under the Action of Factors“,Acta Universitatis Danubius, Oeconomica, nr.6, vol.7, ISSN 2065-0175, pp.115 - 128, 2011

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/1026/1187

 

Ris 106. Ioan Catalin Angelo/Ioan Gina, “The Analysis of the Evolution of the Gross Domestic Product by Means of Fourier Development“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.7, ISSN 2065-0175, pp.146-161, 2011

http://www.journals.univ-danubius.ro/index.php/oeconomica/article/view/949

 

Ris 107. Ioan Catalin Angelo/Ioan Gina, “The Equilibrium Analysis of a Closed Economy Model with Government and Money Market Sector“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.7, ISSN 2065-0175, pp.127-143, 2011

http://journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/1091/946

 

Ris 108. Ioan Catalin Angelo/Ioan Alin Cristian, “On The Nature of Level Hyper Surfaces in the Economic Theory“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.7, ISSN 2065-0175, pp.144-150, 2011

http://journals.univ-danubius.ro/index.php/oeconomica/article/viewFile/1094/947

 

Ris 109. Ioan Catalin Angelo/Ioan Gina, “Trends and Developments in Romania's Trade Balance in the Period 2006-2010“,Acta Universitatis Danubius, Oeconomica, nr.3, vol.7, ISSN 2065-0175, pp.174 -192, 2011

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1004

 

Ris 110. Ioan Catalin Angelo, “The extreme of a function subject to restraint conditions“,Acta Universitatis Danubius, Oeconomica, nr.3, vol.7, ISSN 2065-0175, pp.203 - 207, 2011

http://journals.univ-danubius.ro/index.php/oeconomica/article/view/1006

 

Ris 111. Ioan Catalin Angelo, “The E-learning Limits“,Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.138-159, 2011

http://ideas.repec.org/a/dug/journl/y2008i2p49-53.html

 

Ris 112. Ioan Catalin Angelo, “A solving method of two economical problems using linear programming in integer numbers“, Euroeconomica nr.21, ISSN 1582-8859, pp.49-53, 2008

http://ideas.repec.org/a/dug/journl/y2008i2p49-53.html

http://www.euroeconomica-danubius.ro/arhiva/euroeconomica%2021/5.ioan.pdf

http://econpapers.repec.org/article/dugjournl/y_3a2008_3ai_3a2_3ap_3a49-53.htm

http://socionet.ru/publication.xml?h=repec:dug:journl:y:2008:i:2:p:49-53&l=en

http://www.icaap.org/list_journal.php?action=show_details&journal_id=326

 

Ris 113. Ioan Catalin Angelo,“Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

http://ideas.repec.org/a/dug/journl/y2007i18p30-37.html

http://www.icaap.org/list_journal.php?action=show_details&journal_id=326

 http://econpapers.repec.org/article/dugjournl/y_3A2007_3Ai_3A18_3Ap_3A30-37.htm

 http://socionet.ru/publication.xml?h=repec:dug:journl:y:2007:i:18:p:30-37&l=en

 http://www.euroeconomca- danubius.ro/arhiva/euroeconomica%2018/4.Catalin%20Angelo%20IOAN.pdf

Citation in A.D. Vîlcu, G.E. Vîlcu, “On some geometric properties of the generalized CES production functions”, Applied Mathematics and Computation, Volume 218, Issue 1, 1 September 2011, Pages 124–129

Citation in G.E. Vîlcu, “A geometric perspective on the generalized Cobb–Douglas production functions”, Applied Mathematics Letters, Volume 24, Issue 5, May 2011, Pages 777–783

Ris 114. Ioan Catalin Angelo, “Trend of evolution of the Romanian population in the period 2005-2010”, Euroeconomica nr.16, ISSN 1582-8859, pp.53-56, 2006

http://www.euroeconomica-danubius.ro/arhiva/Euroeconomica%20nr%2016.doc

Ris 115. Ioan Catalin Angelo,  “An imaginary model of the living universe”, Euroeconomica nr.15, ISSN 1582-8859, pp.67-73, 2005

http://www.euroeconomica-danubius.ro/arhiva/euroeconomica%2015.2005.pdf

Ris 116. Ioan Catalin Angelo, “The choice of optimal decisions în uncertitude situations”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.72-76, 2008

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 117. Ioan Catalin Angelo, “New methods in mathematical management of organization”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.25-64, 2008

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 118. Ioan Catalin Angelo, “A condition for a Sasakian manifold to be of constant curvature”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.163-168, 2008

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 119. Ioan Catalin Angelo, “The sequence operation in production flows”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.16-20, 2007

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 120. Ioan Catalin Angelo, “Degenerate foliations in semi-riemannian manifolds”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.11-76, 2006

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 121. Ioan Catalin Angelo, “A General Type of Almost Contact Manifolds”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.41-54, 2005

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 122. Ioan Catalin Angelo, “Degenerate foliations in Sasakian semi-riemannian manifolds”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.33-40, 2005

http://journals.indexcopernicus.com/karta.php?action=masterlist&id=4766

http://www.doaj.org/doaj?func=findJournals&hybrid=&query=Acta+universitatis

http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=econ.dev

Ris 123. Ioan Catalin Angelo, “The sequence of two installations without initial deliverance times“, Euroeconomica nr.23, ISSN 1582-8859, pp.5-12, 2009

http://econpapers.repec.org/article/dugjournl/y_3a2009_3ai_3a2_3ap_3a5-12.htm

http://ideas.repec.org/a/dug/journl/y2009i2p5-12.html

http://www.socionet.ru/publication.xml?h=repec:dug:journl:y:2009:i:2:p:5-12&l=en

http://www.ceeol.com/aspx/issuedetails.aspx?issueid=05ea5647-2564-4fc1-b7d3-fdf585bc14ea&articleId=815f4d32-b2ad-4405-99ff-407a7b3df277

 

Ris 124. Ioan Catalin Angelo, “The Production Functions from the Point of View of 3-Dimensional Geometry “,Acta Universitatis Danubius, Nr. V, ISSN 2065-0175, pp.7-15, 2009

http://ideas.repec.org/a/dug/actaec/y2009i1p7-15.html

http://econpapers.repec.org/article/dugactaec/y_3a2009_3ai_3a1_3ap_3a7-15.htm

 

Ris 125. Ioan Catalin Angelo, “New Assignation Methods of Workers on Jobs“, Acta Universitatis Danubius, Nr. V, ISSN 2065-0175, pp.186-188, 2009

http://ideas.repec.org/a/dug/actaec/y2009i1p186-188.html

http://econpapers.repec.org/article/dugactaec/y_3a2009_3ai_3a1_3ap_3a186-188.htm

http://socionet.ru/publication.xml?h=repec:dug:actaec:y:2009:i:1:p:186-188&l=en

 

Ris 126. Ioan Catalin Angelo, “A generalization of Some Production Functions“, Acta Universitatis Danubius, Nr. VI, ISSN 2065-0175, pp.110-123, 2010

http://ideas.repec.org/a/dug/actaec/y2010i1p110-123.html http://socionet.ru/publication.xml?h=repec:dug:actaec:y:2010:i:1:p:110-123&l=en http://www.mvslmorocco.ma/libhub?func=issueTOC&issn=20650175&tocName=2010_6_1&collection=ejor&language=en

 

Ris 127. Ioan Catalin Angelo, “A Method of Determination of an Aquisition Program in Order to Maximize the Total Utility Using Linear Programming in Integer Numbers“, Acta Universitatis Danubius, Nr. VI, ISSN 2065-0175, pp.124 -128, 2010

http://econpapers.repec.org/article/dugactaec/y_3a2010_3ai_3a1_3ap_3a124-128.htm http://ideas.repec.org/a/dug/actaec/y2010i1p124-128.html

 

Ris 128. Ioan Catalin Angelo, “A Method of Determination of an Aquisition Program of N Goods  in Order to Maximize the Total Utility“, Acta Universitatis Danubius, Nr. VII, ISSN 2065-0175, pp.103-110, 2010

http://ideas.repec.org/a/dug/actaec/y2010i2p106-113.html

 

Ris 129. Ioan Catalin Angelo, “Two Methods of Determination of an Aquisition Program in Integer Numbers“, Acta Universitatis Danubius, Nr.IX, ISSN 2065-0175, pp.126-131, 2010

http://czytanki.net/channels/economy/items/two-methods-determination-acquisition-program-integer-numbers

 

Ris 130. Ioan Catalin Angelo, “The Substitution and the Revenue Effects for a Cobb-Douglas Utility Function“,The Annals of "Dunărea de Jos" University of Galati, XVI/2, ISSN 1584-0409, pp.87-94, 2010

http://ideas.repec.org/a/ddj/fseeai/y2010i2p87-94.html http://econpapers.repec.org/article/ddjfseeai/y_3a2010_3ai_3a2_3ap_3a87-94.htm http://www.doaj.org/doaj?func=abstract&id=684202 http://socionet.ru/publication.xml?h=repec:ddj:fseeai:y:2010:i:2:p:87-94

 

International citations

 

Ris 1. Rengganik, DR. Sugiyono, “ANALISIS TOTAL FAKTOR PRODUKTIVITAS INDUSTRI MANUFAKTUR DI JAWA BARAT (2010-2015)”, Jurnal Ilmiah Manajemen, Vol. 5, Nr.2, 2021 for the paper “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

https://media.neliti.com/media/publications/353524-analisis-total-faktor-produktivitas-indu-22f01c39.pdf

 

Ris 2. Gauree Shanker, Ankit Yadav, “Generalized QR (GQR)- Lightlike Submanifolds of Indefinite Quaternion Kähler Manifolds”, Journal of International Academy of Physical Sciences, Vol.25, Nr.4, pp. 475-494, 2021 for the paper “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp. 18-30, 1997

https://www.researchgate.net/publication/357826732_Generalized_QR_GQR-Lightlike_Submanifolds_of_Indefinite_Quaternion_Kahler_Manifolds/references#fullTextFileContent

 

Ris 3. Husam Wahdan, Zeng Rui Tian, “Assessing the Efficiency of Venture Capital Functioning in the Transforming Economy in UAE and China by a Mathematical Model”, SAGE Open, Vol.12, Nr.1, pp. 1-11, 2022 for the paper “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

https://journals.sagepub.com/doi/10.1177/21582440211068484

 

Ris 4. Bang-Yen Chen, Alina-Daniela Vilcu, Gabriel Eduard Vilcu, “Classification of graph surfaces induced by weighted-homogeneous functions exhibiting vanishing Gaussian curvature”, Mediterranean Journal of Mathematics, 19(1), pp. 1-13 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

https://www.researchgate.net/publication/357355277_Classification_of_graph_surfaces_induced_by_weighted-homogeneous_functions_exhibiting_vanishing_Gaussian_curvature/references

 

Ris 5. Aleksandar Vasilev, “Can Shocks to Risk Aversion Explain Business Cycle Fluctuations in Bulgaria (1999–2019)?”, Managing Global Transitions, 19(4), DOI: 10.26493/1854-6935.19.271-284, pp.271-284, December, 2021 for the paper “An Equilibrium Model for the Romanian Economy“, Journal of Accounting and Management, nr.2, vol.6, 2016, ISSN 2284-9459, pp.41-75

https://www.hippocampus.si/ISSN/1854-6935/19.271-284.pdf

Ris 6. Richard Ilorah, Collins C. Ngwakwe, “Foreign Aid and Economic Development in Sub-Saharan Africa: The Mediating Role of Governance Effectiveness”, Managing Global Transitions 19 (4), pp. 307–326, December, 2021 for the paper “An Equilibrium Model for the Romanian Economy“, Journal of Accounting and Management, nr.2, vol.6, 2016, ISSN 2284-9459, pp.41-75

https://www.researchgate.net/publication/356863560_Can_Shocks_to_Risk_Aversion_Explain_Business_Cycle_Fluctuations_in_Bulgaria_1999-2019/references

 

Ris 7. Nicolo Cangiotti, Mattia Sensi, “A Geometric Characterization of Ves and Kadiyala-Type Production Functions”, Filomat, Vol. 35, Nr.5, pp.1661-1670, April, 2021 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

https://www.researchgate.net/publication/356578398_A_geometric_characterization_of_VES_and_Kadiyala-type_production_functions/references

 

Ris 8. Knyazeva Irina Vladimirovna, Zaikin Nikolai Nikolaevici, Bondarenko Irina Viktorovna, „Discriminarea prin prețuri pe piețele limitate: o analiză teoretică”, Universitatea Financiară și Industrială din Moscova "Synergy" (Moscova) ISSN: 1993-7598, Vol.15, Nr.3 (83), pp. 71-85 for the paper “Aspects of Price Discrimination in the Monopoly“, Acta Universitatis Danubius, Oeconomica, nr.4, vol.7, ISSN 2065-0175, pp.103 - 114, 2011

https://www.elibrary.ru/item.asp?id=46400187

 

Ris 9. Păunică, M., Manole, A., Motofei, C. and Tănase, G.L., “Resilience of the European Union Economies. An Analysis of the Granger Causality at the Level of the Gross Domestic Product”, Amfiteatru Economic, 23(Special Issue No. 15), 2021, pp. 914-933, DOI: 10.24818/EA/2021/S15/914 for the paper “An analysis on the net export dependence relative to GDP and the consumer demand for Romania during 2001-2011”, EuroEconomica, 4(31), pp. 98-105.

https://www.amfiteatrueconomic.ro/temp/Article_3048.pdf

Ris 10. Haradhan Kumar Mohajan, “Estimation of cost minimization of garments sector by Cobb-Douglas production function: Bangladesh perspective”, Annals of Spiru Haret University, Issue 2/2021, pp.267-299 for the paper “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

https://www.researchgate.net/publication/352879296_ESTIMATION_OF_COST_MINIMIZATION_OF_GARMENTS_SECTOR_BY_COBB-DOUGLAS_PRODUCTION_FUNCTION_BANGLADESH_PERSPECTIVE/references

 

Ris 11. Ankit Yadav, Gauree Shanker, Ramandeep Kaur Aulakh, “An investigation on the existence of totally contact umbilical screen-slant lightlike submanifolds of indefinite Sasakian manifolds”, Differential Geometry - Dynamical Systems, Balkan Society of Geometers, Geometry Balkan Press 2021, Vol. 23, pp. 244-254 for the paper “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp. 18-30, 1997

https://www.researchgate.net/profile/Catalin-Ioan/stats/report/weekly/2021-07-11

 

Ris 12. Achille Dargaud Fofack, Serge Djoudji Temkeng, “How Tight Is the Link between Productivity and Pay in the Mining Industry?”, International Social Science Practice and Research, 2021 for the paper “ The dependence of net average wage on labour productivity in Romania“,Euroeconomica, nr.1, vol.39, pp.7-47

scholar.google.ro/scholar_url?url=https://isspar.com/index.php/isspar/article/download/4/15&hl=ro&sa=X&d=3340202430009506067&ei=uoOaYPv5AZWSmgHX_ILoBA&scisig=AAGBfm17ZNpyxU-E3PF2CF7ZxF_D_T9_OQ&nossl=1&oi=scholaralrt&hist=xwyDTlQAAAAJ:211232126346576629:AAGBfm0UklhleRkERfEFQW_YdHDXvmOFlA&html=&folt=cit&fols=

 

Ris 13. Проневич А.Ф. (Гродно), Хацкевич Г.А. (Минск), “ОБ ОБРАТНЫХ ЗАДАЧАХ ТЕОРИИ ПРОИЗВОДСТВЕННЫХ ФУНКЦИЙ”, X-я Юбилейная международная школа – семинар «Многомерный статистический анализ, эконометрика  и моделирование реальных процессов»  имени С.А. Айвазяна, pp.94-97, January, 2021 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

http://www.cemi.rssi.ru/publication/books/Aivazian_2021.pdf#page=94

 

Ris 14. Kraus B., “THE ROLE OF IT MANAGEMENT IN THE DIGITAL ECONOMY”, Journal of Scientific and Academic Research, No.1, February 2020, pp. 29-40 for the paper “Matematică – II“, Editura Sinteze, Galați, ISBN 978-973-1917-14-6, 440 pagini, 2008

https://scientificacademicresearch.com/wp-content/uploads/2020/02/2020.1-4-THE-ROLE-OF-IT-MANAGEMENT-IN-THE-DIGITAL-ECONOMY.pdf

 

Ris 15. Kraus B., “THE ROLE OF IT MANAGEMENT IN THE DIGITAL ECONOMY”, Journal of Scientific and Academic Research, No.1, February 2020, pp. 29-40 for the paper “Managementul actual - de la teorie la modelare matematică“, Editura Sinteze, Galaţi, ISBN 973-7772-41-5, 380 pagini, 2005

https://scientificacademicresearch.com/wp-content/uploads/2020/02/2020.1-4-THE-ROLE-OF-IT-MANAGEMENT-IN-THE-DIGITAL-ECONOMY.pdf

 

Ris 16. Gaspars-Wieloch Helena, “A New Application for the Goal Programming—The Target Decision Rule for Uncertain Problems”, Journal of Risk and Financial Management Vol.13, NO. 280, pp. 1-14, DOI: 10.3390/jrfm13110280 for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

https://www.researchgate.net/publication/345819927_A_New_Application_for_the_Goal_Programming_-_The_Target_Decision_Rule_for_Uncertain_Problems

 

Ris 17. Gaspars-Wieloch Helena, “CRITICAL ANALYSIS OF CLASSICAL SCENARIO-BASED DECISION RULES FOR PURE STRATEGY SEARCHING”, SCIENTIFIC PAPERS OF SILESIAN UNIVERSITY OF TECHNOLOGY, ORGANIZATION AND MANAGEMENT SERIES NO. 149, pp. 155-165, DOI: 10.29119/1641-3466.2020.149.15 for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

https://www.researchgate.net/publication/344712837_CRITICAL_ANALYSIS_OF_CLASSICAL_SCENARIO-BASED_DECISION_RULES_FOR_PURE_STRATEGY_SEARCHING/references#fullTextFileContent

 

Ris 18. Collins C. Ngwakwe, “Causal Relationship Between the BRICS Countries’ Stock Performances During COVID-19”, Acta Universitatis Danubius. Oeconomica, Vol. 16, Nr.4, pp.139-149, 2020 for the paper “The Equilibrium Analysis of a Closed Economy Model with Government and Money Market Sector“,Acta Universitatis Danubius, Oeconomica, nr.5, vol.7, ISSN 2065-0175, pp.127-143, 2011

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/AUDOE/article/download/341/576&hl=en&sa=X&d=532816618389239442&scisig=AAGBfm1qYZ7gxqSztCTxZow0vLkmxPvJGg&nossl=1&oi=scholaralrt&html=&cited-by=

 

Ris 19. Collins C. Ngwakwe, “Measuring the Interdependence between Economic Growth and Human Development in South Africa”, Euroeconomica, Vol.39, Nr.2, 2020 for the paper “An analysis on the net export dependence relative to GDP and the consumer demand for Romania during 2001-2011“, Euroeconomica, nr.4, 2012, ISSN 1582-8859, pp.98-105

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/EE/article/download/294/479&hl=en&sa=X&d=13523101898483013011&scisig=AAGBfm3fZUCjmTXgjDCGDo-udJ16MB43wA&nossl=1&oi=scholaralrt&html=

 

Ris 20. Collins C. Ngwakwe, “Measuring the Interdependence between Economic Growth and Human Development in South Africa”, Euroeconomica, Vol.39, Nr.2, 2020 for the paper “ An Equilibrium Model for the Romanian Economy“, Journal of Accounting and Management, nr.2, vol.6, 2016, ISSN 2284-9459, pp.41-75

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/EE/article/download/294/479&hl=en&sa=X&d=13523101898483013011&scisig=AAGBfm3fZUCjmTXgjDCGDo-udJ16MB43wA&nossl=1&oi=scholaralrt&html=

 

Ris 21. Collins C. Ngwakwe, “Measuring the Interdependence between Economic Growth and Human Development in South Africa”, Euroeconomica, Vol.39, Nr.2, 2020 for the paper “A New Approach to Utility Function“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, 2015, ISSN 2065-0175, pp.193-222

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/EE/article/download/294/479&hl=en&sa=X&d=13523101898483013011&scisig=AAGBfm3fZUCjmTXgjDCGDo-udJ16MB43wA&nossl=1&oi=scholaralrt&html=

 

Ris 22. Sipho K. Mokoena, Mamoloko Rachidi, Collins C. Ngwakwe, “The Nexus between Public Expenditure and Economic Growth”, Euroeconomica, Vol.39, Nr.2, 2020 for the paper “Analysis of the Main Economic Indicators of the World”, Acta Universitatis Danubius. Oeconomica, Nr.2, Vol.14, ISSN:2065-0175, pp.195-461

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/EE/article/download/297/482&hl=en&sa=X&d=8813682903377473315&scisig=AAGBfm2cKE5hg6YJauaZg92EVSg-LTTjrQ&nossl=1&oi=scholaralrt&html=

 

Ris 23. Sipho K. Mokoena, Mamoloko Rachidi, Collins C. Ngwakwe, “The Nexus between Public Expenditure and Economic Growth”, Euroeconomica, Vol.39, Nr.2, 2020 for the paper “An Equilibrium Model with Applications for some of the North and Central American Countries”, Acta Universitatis Danubius. Oeconomica, Nr.7, Vol.15, ISSN:2065-0175, pp.330-439

http://scholar.google.com/scholar_url?url=http://dj.univ-danubius.ro/index.php/EE/article/download/297/482&hl=en&sa=X&d=8813682903377473315&scisig=AAGBfm2cKE5hg6YJauaZg92EVSg-LTTjrQ&nossl=1&oi=scholaralrt&html=

 

Ris 24. Aning Kesuma Putri, Ayu Wulandari, “Factors Influencing The Income Of Fishermen”, Integrated journal of business and economics, Vol.4, Nr.2, 2020 for the paper “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

http://ojs.ijbe-research.com/index.php/IJBE/article/view/298

Ris 25. Nicolo Cangiotti, Mattia Sensi, “A geometric characterization of VES and Kadiyala-type production functions”, arXiv:2004.09617v1 [econ.TH] 20 Apr 2020, pp.1-16, April, 2020 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

http://scholar.google.com/scholar_url?url=https://arxiv.org/pdf/2004.09617&hl=en&sa=X&d=6491756676267607099&scisig=AAGBfm3-Tx5lhs77poKemkObkQ97Dso8cg&nossl=1&oi=scholaralrt

 

Ris 26. Баранов С.В., Скуфьина Т.П., Гущина И.А., “Влияние повышения пенсионного возраста на экономику и настроения населения Мурманской области”, Экономические и социальные перемены: факты, тенденции, прогноз, Vol.13, Nr.1, 2020, pp. 160-173, DOI: 10.15838/esc.2020.1.67.9 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

 

Ris 27. Collins C. Ngwakwe, “Analysis of the Differential Effect of Brexit on the FTSE Stock and Money Market Performance”, Acta Universitatis Danubius, Oeconomica, Vol. 16, Nr.1, 2020 for the paper “The Relationship between Spatial Interdependencies in the European Union and the Trade-I”, Acta Universitatis Danubius, Oeconomica, nr.6, vol.12, ISSN 2065-0175, pp.5 – 118

 

Ris 28. Gaspars-Wieloch Helena, “SPARE PARTS QUANTITY PROBLEM UNDER UNCERTAINTY – THE CASE OF ENTIRELY NEW DEVICES WITH SHORT LIFE CYCLE, M U LT I P L E C R I T E R I A D E C I S I O N M A K I N G, 2019, Vol. 14, pp. 5-28, DOI: 10.22367/mcdm.2019.14.01 for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://cejsh.icm.edu.pl/cejsh/element/bwmeta1.element.cejsh-02008aa6-8b7f-4a18-9da1-5bdaf95f3023

Ris 29. Khatskevich G. A., Pranevich F., “TWO-FACTOR PRODUCTIONS FUNCTIONS WITH GIVEN TOTAL ELASTICITY OF PRODUCTION”, Тенденции экономического развития XXI века, Секция 2. Аналитическая экономика и прогнозирование, December, 2019 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

http://scholar.google.ro/scholar_url?url=http://elib.bsu.by/bitstream/123456789/237875/1/204-207.pdf&hl=ro&sa=X&d=16564260130509403485&scisig=AAGBfm2AZr-LrMSfSG1fd_95xsrvoolxNA&nossl=1&oi=scholaralrt&hist=xwyDTlQAAAAJ:211232126346576629:AAGBfm0UklhleRkERfEFQW_YdHDXvmOFlA

 

Ris 30. Paly Muhammad Basir, ” COMMERCIAL SMALLHOLDER LAYING HENS: PRODUCTION EFFICIENCY AND INTENSITY OF INPUT USE ACCORDING TO PRODUCTION PHASE IN SOUTH SULAWESI, INDONESIA”, RJOAS, Vol.5, Nr. 89, pp. 209-216 for the paper “The Complete Theory of Cobb-Douglas Production Function“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11, 2015, ISSN 2065-0175, pp.74-114

http://scholar.google.com/scholar_url?url=https://pdfs.semanticscholar.org/92e7/bc9091a66e96b1ea7c0b5d9f08268c7e7f22.pdf&hl=en&sa=X&d=9841540338957709894&scisig=AAGBfm0wgMNzPQj1sVGN79EZoUq5FPLC7Q&nossl=1&oi=scholaralrt

 

Ris 31. Ade Nur Rohim, “Maximizing Utility And Distributing Income Equitably: How does Zakah Impact Both of Them at Once?”, Islamic Economics Journal, Vol.4, Nr.2, pp. 155-180, 2018 for the paper “A New Approach to Utility Function“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, 2015, ISSN 2065-0175, pp.193-222

https://www.researchgate.net/publication/332242948_Maximizing_Utility_And_Distributing_Income_Equitably_How_does_Zakah_Impact_Both_of_Them_at_Once

 

Ris 32. Pușcă Corneliu Andy, Pîrju Ionel Sergiu, “Redefining the management of performance orientation in the romanian higher educational system”, INTERNATIONAL CONFERENCE ON INNOVATIONS IN SCIENCE AND EDUCATION, PRAGUE, pp.1-7, 2019 for the paper “Global Education Level Analysis – Part three”, Acta Universitatis Danubius, Oeconomica, nr.7, vol.14, ISSN 2065-0175, pp.272-427

https://ojs.journals.cz/index.php/CBUIC/article/view/1371/1900

Ris 33. O. Yankovyi, Yu. Goncharov, V. Koval, T. Lositska, “Optimization of the capital-labor ratio on the basis of production functions in the economic model of production”, Scientific Bulletin of National Mining University, Nr. 4, pp.134-140, 2019 for the paper “The Complete Theory of Generalized CES Production Function“, Journal of Accounting and Management, nr.2, vol.5, ISSN: 2284 – 9459, pp.15-37

https://web.b.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=20712227&AN=138337112&h=AypKeAsClKWI%2fgSHwnpDNYMab0wa8NJ0uIqcll8aNzemUqJTcC6wS%2f%2bvezx687yt8MUnGR96ZnD%2bqgNI3MhnVA%3d%3d&crl=c&resultNs=AdminWebAuth&resultLocal=ErrCrlNotAuth&crlhashurl=login.aspx%3fdirect%3dtrue%26profile%3dehost%26scope%3dsite%26authtype%3dcrawler%26jrnl%3d20712227%26AN%3d138337112

Ris 34. Guennadi Khatskevich, Andrei Pranevich, Yury Karaleu, “Analytical Forms of Productions Functions with Given Total Elasticity of Production”, Information Systems Architecture and Technology: Proceedings of 40th Anniversary International Conference on Information Systems Architecture and Technology – ISAT 2019, DOI: 10.1007/978-3-030-30443-0_25, January, 2020 for the paper “A generalization of a class of production functions”, Applied economics letters, Warwick University, Coventry, UK, ISSN 0003-6846, Volume 18, Issue 18, December 2011, pages 1777-1784

https://www.researchgate.net/publication/335636329_Analytical_Forms_of_Productions_Functions_with_Given_Total_Elasticity_of_Production

 

Ris 35. Dae Ho Jin, “Non-existence of totally geodesic screen distributions on lightlike hypersurfaces of indefinite kenmotsu manifolds”, Communications of the Korean Mathematical Society 28(2), 2013,  DOI: 10.4134/CKMS.2013.28.2.353 for the paper “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp. 18-30, 1997

https://www.researchgate.net/publication/264145240_Non-existence_of_totally_geodesic_screen_distributions_on_lightlike_hypersurfaces_of_indefinite_kenmotsu_manifolds

 

Ris 36. Bouchaib Assila, Abdellatif Kobbane, Mohammed El Koutbi, “A Cournot Economic Pricing Model for Caching Resource Management in 5G Wireless Networks”, Conference: 2018 14th International Wireless Communications & Mobile Computing Conference (IWCMC), June 2018, DOI: 10.1109/IWCMC.2018.8450538 for the paper “The Cournot Equilibrium for n Firms”, International conference “European Integration – Realities and Perspectives” 2015, Galati, Proceedings, pp.364-374

https://www.researchgate.net/publication/327328122_A_Cournot_Economic_Pricing_Model_for_Caching_Resource_Management_in_5G_Wireless_Networks

 

Ris 37. Gabriel-Eduard Vîlcu, “On a generalization of a class of production functions”, Applied Economics Letters, Nr.2, Vol.25, pp.106-110, 2016, Martie, 2017, DOI: 10.1080/13504851.2017.1299097 for the paper “A generalization of a class of production functions”, Appl. Econ. Lett. 18 (2011), 1777-1784 - Impact factor of the journal where it is cited – 0,504

https://www.tandfonline.com/doi/full/10.1080/13504851.2017.1299097

 

Ris 38. Cipriani Nastassja, “Spacelike submanifolds, their umbilical properties and applications to gravitational physics”, Department of Theoretical Physics and History of Science - University of the Basque Country, 2017, pp.1-168 for the paper “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, nr.1, vol.58, pp.18-30, 1997

http://scholar.google.com/scholar_url?url=https://addi.ehu.es/bitstream/handle/10810/25039/TESIS_CIPRIANI_NASTASSJA.pdf%3Fsequence%3D1&hl=en&sa=X&scisig=AAGBfm3BAB0K_p75S_XIuYdP9eDV-Xiz4A&nossl=1&oi=scholaralrt

 

Ris 39. Gaspars-Wieloch Helena, “Project Net Present Value estimation under uncertainty”, Central European Journal of Operations Research, 2017, pp.1-19, https://doi.org/10.1007/s10100-017-0500-0 for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011 – Impact factor of the citation journal – 0,978

https://link.springer.com/article/10.1007/s10100-017-0500-0

 

Ris 40. Bouchaib Assila, Abdellatif Kobbane, Mouna Elmachkour, Mohammed El Koutbi, “A dynamic stackelberg-cournot game for competitive content caching in 5G networks”, Conference: 2017 International Conference on Wireless Networks and Mobile Communications (WINCOM), 2017, November, DOI: 10.1109/WINCOM.2017.8238184 for the paper “The Cournot Equilibrium for n Firms”, The International Conference “European Integration - Realities and Perspectives” 2015, Galati, Proceedings, pp.364-374

https://www.researchgate.net/publication/322060116_A_dynamic_stackelberg-cournot_game_for_competitive_content_caching_in_5G_networks

 

Ris 41. Dobbins Michael, “Exploring higher education governance in Poland and Romania: Re-convergence after divergence?”, European Educational Research Journal, 2017, June, SAGE Publishing, http://dx.doi.org/10.1177/1474904116684138 for the paper “Evolution and Consequences of Economic Crisis in Romania“, Euroeconomica nr.2 (34), ISSN 1582-8859, pp.161-189, 2015

http://journals.sagepub.com/doi/abs/10.1177/1474904116684138

 

Ris 42. Bugas D., “Modelling the expert’s preferences in decision-making under complete uncertainty”, Eastern European Journal of Enterprise Technologies, Vol.5, Nr.4 (83), pp.12-17, ISSN: 1729-3774, 2016, DOI 10.15587/1729-4061.2016.81308 for the paper “A New Approach to Utility Function“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.11, 2015, ISSN 2065-0175, pp.193-222 – Impact factor of the citation journal – 0,150

http://journals.uran.ua/eejet/article/view/81306

 

Ris 43. Gaspars-Wieloch Helena, „Newsvendor problem under complete uncertainty: a case of innovative products”, Central European Journal of Operations Research, pp.1-25 (2016), DOI 10.1007/s10100-016-0458-3 for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011 – Impact factor of the citation journal – 0,978

http://link.springer.com/article/10.1007/s10100-016-0458-3

 

Ris 44. Alina-Daniela Vîlcu, Gabriel-Eduard Vîlcu, “A survey on the geometry of production models in economics”, Arab Journal of Mathematical Sciences, Nr.2, Vol.22, ISSN:1319-5166, pp.1-14, 2016, http://www.sciencedirect.com/science/article/pii/S1319516616300251 for the paper: “Applications of the space differential geometry at the study of production functions”, Euroeconomica, Nr.18, 2007

http://www.sciencedirect.com/science/article/pii/S1319516616300251

 

Ris 45. Alina-Daniela Vîlcu, Gabriel-Eduard Vîlcu, “A survey on the geometry of production models in economics”, Arab Journal of Mathematical Sciences, Nr.1, Vol.23, ISSN:1319-5166, pp.18-31, 2017, http://dx.doi.org/10.1016/j.ajmsc.2016.08.003 for the paper: “Applications of the space differential geometry at the study of production functions”, Euroeconomica, Nr.18, 2007

http://www.sciencedirect.com/science/article/pii/S1319516616300251

 

Ris 46. Gaspars-Wieloch Helena, „O regule decyzyjnej wspierającej wielokryterialne poszukiwanie optymalnej strategii czystej w warunkach niepewności”, Studia Ekonomiczne. Zeszyty Naukowe, Uniwersytetu Ekonomicznego w Katowicach, nr.248, pp.42-61 (2015) for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://cejsh.icm.edu.pl/cejsh/element/bwmeta1.element.cejsh-0b098736-2114-4b01-9857-43dd5bccf990

 

Ris 47. Gaspars-Wieloch Helena, „On securities portfolio optimization, preferences, payoff matrix estimation and uncertain mixed decision making”, Contemporaty issues in business, management and education, VGTU Press, 11pp. (2015) for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://old.konferencijos.vgtu.lt/cbme.vgtu.lt/public_html/index.php/cbme/cbme_2015/paper/view/702/89

 

Ris 48. Gaspars-Wieloch Helena, „ON TWO APPLICATIONS OF THE OMEGA RATIO: MAXΩMIN AND OMEGA(H+B)”, Research Papers of the Wroclaw University of Economics / Prace Naukowe Uniwersytetu Ekonomicznego we Wroclawiu, Issue 446, pp. 21-36 (2016) for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.ekon-element-000171447172

 

Ris 49. Gaspars-Wieloch Helena, „A decision rule for uncertain multicriteria mixed decision making based on the coefficient of optimism”, MULTIPLE CRITERIA DECISION MAKING, vol.10, 2015, for the paper “A method of choice of the best alternative in the multiple solutions case in the Games Theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

https://pbn.nauka.gov.pl/polindex-webapp/browse/article/article-80a01dce-ed81-4118-a27f-e1fb4ba91a99

 

Ris 50. M. E. Aydin, Mihai A.,  „Classification of Quasi-Sum Production Functions with Allen Determinants”, Faculty of Sciences and Mathematics University of Niˇs, Serbia, Filomat 29:6 (2015), 1351–1359 , DOI 10.2298/FIL1506351A for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

http://journal.pmf.ni.ac.rs/filomat/index.php/filomat/article/view/696

 

Ris 51. M. E. Aydin, Mihai A.,  „Translation hypersurfaces and Tzitzeica translation hypersurfaces of the euclidean space”, Proceedings of the Romanian Academy, Series A, Volume 16, Number 4/2015, pp. 477–483 for the paper “The Reduction of Quadratic Forms to the Normal Form with Applications for Production Functions”, Acta Universitatis Danubius. Economica 9(2) (2013), 120-152

https://www.researchgate.net/publication/284724606_TRANSLATION_HYPERSURFACES_AND_TZITZEICA_TRANSLATION_HYPERSURFACES_OF_THE_EUCLIDEAN_SPACE

 

Ris 52. M. E. Aydin, M. Ergut,  „A classification of homothetical hypersurfaces in Euclidean spaces via Allen determinants and its applications”, Applied Sciences, Volume 17 (2015), Pages 1-8 for the paper “The Reduction of Quadratic Forms to the Normal Form with Applications for Production Functions”, Acta Universitatis Danubius. Economica 9(2) (2013), 120-152

www.mathem.pub.ro/apps/v17/A17-ay-955.pdf

 

Ris 53. M. E. Aydin, Mihai A.,  „On Quasi-Sum Production Functions”, Proceedings of the Conference RIGA 2014 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

https://www.researchgate.net/publication/273450317_On_quasi-sum_production_functions

 

Ris 54. M. E. Aydin, M. Ergut,  „Homothetic functions with Allen's perspective and its geometric applications”, Kragujevac Journal of Mathematics, Volume 38(1) (2014), Pages 185-194 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007 – Impact factor of the citation journal – 0,344

https://www.researchgate.net/publication/263495495_Homothetic_functions_with_Allen%27s_perspective_and_its_geometric_applications

 

Ris 55. M. E. Aydin, M. Ergut,  „Hessian determinants of composite functions with applications for production functions in economics”, Kragujevac Journal of Mathematics, Volume 38(2) (2014), Pages 259-268 for the paper “The Reduction of Quadratic Forms to the Normal Form with Applications for Production Functions”, Acta Universitatis Danubius. Economica 9(2) (2013), 120-152 – Impact factor of the citation journal – 0,344

https://www.researchgate.net/publication/270217953_Hessian_Determinants_of_Composite_Functions_with_Applications_for_Production_Functions_in_Economics

 

Ris 56. A.D. Vîlcu, G.E. Vîlcu, “Some characterizations of the quasi-sum production models with proportional marginal rate of substitution”, Comptes Rendus Mathematique, Volume 353, Issue 12, December 2015, Pages 1129–1133, for the paper “A generalization of a class of production functions”, Appl. Econ. Lett. 18 (2011), 1777-1784 - Impact factor of the citation journal – 0,446

http://www.sciencedirect.com/science/article/pii/S1631073X15002459

 

Ris 57. G. Gemelli, “The Mathematical Theory of Gravitational Discontinuity Hypersurfaces”, General Relativity and Gravitation, 2002, Springer for the paper “Degenerate submanifolds of Semi-Riemannian manifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp.1-7, 1997 – Impact factor of the citation journal – 1,902

https://www.researchgate.net/publication/226269285_Review_The_Mathematical_Theory_of_Gravitational_Discontinuity_Hypersurfaces

 

Ris 58. G. Gemelli, “Observer-dependent Gauss-Codazzi formalism for null hypersurfaces in the space-time”, Journal of Geometry and Physics, 2002, Elsevier for the paper “Degenerate submanifolds of Semi-Riemannian manifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp.1-7, 1997 – Impact factor of the citation journal – 0,911

http://www.sciencedirect.com/science/article/pii/S0393044002000256

 

Ris 59. E. Yasar, A.C. Coken, A. Yucesan, “Totally umbilical lightlike hypersurfaces in semi-riemannian manifold with semi-symmetric metric connection”, International Journal of Pure and Applied Mathematics, vol.23, No.3, 2005, pp.379-390 for the paper “Totally Umbilical Lightlike Submanifolds”, Tensor N.S., Japan, vol. 58, ISSN 0040-3504, pp. 18-30, 1997 – Impact factor of the citation journal – 2,29

www.mscand.dk/article/viewFile/15061/13056

 

Ris 60. A.D. Vîlcu, G.E. Vîlcu, “On some geometric properties of the generalized CES production functions”, Applied Mathematics and Computation, Volume 218, Issue 1, 1 September 2011, Pages 124–129 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007 – Impact factor of the citation journal – 1,454

http://www.sciencedirect.com/science/article/pii/S0096300311007314

 

Ris 61. G.E. Vîlcu, “A geometric perspective on the generalized Cobb–Douglas production functions”, Applied Mathematics Letters, Volume 24, Issue 5, May 2011, Pages 777–783, for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007 – Impact factor of the citation journal – 1,349

http://www.sciencedirect.com/science/article/pii/S0893965910004994

 

Ris 62. A.D. Vîlcu, G.E. Vîlcu, “On homogeneous production functions with proportional marginal rate of substitution”, Mathematical Problems in Engineering, 2013, for the paper “A generalization of a class of production functions”, Appl. Econ. Lett. 18 (2011), 1777-1784 – Impact factor of the citation journal – 1,383

https://www.hindawi.com/journals/mpe/2013/732643/

 

Ris 63. M. E. Aydin, M. Ergut,  „Composite functions with allen determinants and their applications to production models in economics, TAMKANG JOURNAL OF MATHEMATICS, Volume 45(4) (2014), Pages 427-435 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

http://journals.math.tku.edu.tw/index.php/TKJM/article/view/1569

 

Ris 64. M. Nagy, J. Miranda, “Computer Application for Interactive Teaching of Decision Making Methods”, 3rd World Conference on Information Technology (WCIT-2012), Vol.03, 2013, pp. 1584-1589 for the paper “A method of choice of the importance coefficients in the Electre method“,Journal of Accounting and Management, nr.2, vol.1, ISSN: 2284 – 9459, pp.5-11, 2011

https://scholar.google.ro/citations?view_op=view_citation&hl=ro&user=0jvpc-MAAAAJ&citation_for_view=0jvpc-MAAAAJ:d1gkVwhDpl0C

 

Ris 65. V. Diaby, D. Goeree, „How to use multi-criteria decision analysis methods for reimbursement decision-making in healthcare: a step-by-step guide”, Expert Review of Pharmacoeconomics & Outcomes Research, December 13, 2013 for the paper “A method of choice of the best alternative in the multiple solutions case in the Games Theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011 – Impact factor of the citation journal – 1,674

https://www.ncbi.nlm.nih.gov/pubmed/24328890

 

Ris 66. Jacek Jagodzinski, “The extended Hurwicz criterion for decision making in logistic applications”, The Wroclaw School of Banking Research Journal, No.1 (39), pp.25-43, 2014 for the paper “A method of choice of the best alternative in the multiple solutions case in the Games Theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

http://bazekon.icm.edu.pl/bazekon/element/bwmeta1.element.ekon-element-000171295179

 

Ris 67. Jacek Jagodzinski, “The extended Hurwicz criterion for decision making in logistic applications”, The Wroclaw School of Banking Research Journal, No.1 (39), pp.25-43, 2014 for the paper “New methods in mathematical management of organization”, Acta Universitatis Danubius, Oeconomica, nr.1, ISSN 2065-0175, pp.25-64, 2008

http://bazekon.icm.edu.pl/bazekon/element/bwmeta1.element.ekon-element-000171295179

 

Ris 68. Gaspars-Wieloch Helena, „On a decision rule supported by a forecasting stage based on the decision maker’s coefficient of optimism”, Central European Journal of Operations Research, 10.1007/s10100-014-0364-5 for the paper “A method of choice of the best alternative in the multiple solutions case in the Games Theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011 – Impact factor of the citation journal – 0,787

http://link.springer.com/article/10.1007/s10100-014-0364-5

 

Ris 69. Alpopi Cristina, „ Efectele aglomerarii urbane asupra mediului înconjurator”, Economia, seria Management, Vol.11, Nr.2, 2008 pentru lucrarea “Urbanism și amenajarea teritoriului“, Zigotto Publishing House, Galati, ISBN 978-973-1724-05-8, 2006

 

Ris 70. Rukiye AKTAG, “COBB-DOUGLAS VE ACMS ÜRETĠM HĠPERYÜZEYLERĠ”, T.C FIRAT ÜNĠVERSĠTESĠ FEN BĠLĠMLERĠ ENSTĠTÜSÜ, 2016 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

https://openaccess.firat.edu.tr/xmlui/bitstream/handle/11508/17903/432858.pdf?sequence=1

 

Ris 71. Muhittin Evren AYDIN, “EKONOMİK ALANLARDA DİFERANSİYEL GEOMETRİNİN UYGULAMALARI”, T.C FIRAT ÜNİVERSİTESİ FEN BİLİMLERİ ENSTİTÜSÜ, 2014 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

https://openaccess.firat.edu.tr/xmlui/bitstream/handle/11508/20702/373803.pdf?sequence=1

 

Ris 72. Emrah Yilmaza, Muhittin Evren Aydina, Tuba Gulsena, “A Certain Class of Surfaces on Product Time Scales with Interpretations from Economics”, Filomat, 2018 for the paper “Applications of the space differential geometry at the study of production functions“, Euroeconomica nr.18, ISSN 1582-8859, pp.30-38, 2007

https://www.researchgate.net/profile/Tuba_Gulsen/publication/330342735_A_Certain_Class_of_Surfaces_on_Product_Time_Scales_with_Interpretations_from_Economics/links/5c3dccd5299bf12be3c9d651/A-Certain-Class-of-Surfaces-on-Product-Time-Scales-with-Interpretations-from-Economics.pdf

 

Ris 73. Gaspars-Wieloch Helena, “The Impact of the Structure of the Payoff Matrix on the Final Decision made Under Uncertainty”, Asia-Pacific Journal of Operational Research, Vol.35, Nr.1, 2018, pp.1-27, https://doi.org/10.1142/S021759591850001X, for the paper “A method of choice of the best alternative in the multiple solutions case in the games theory“,Journal of Accounting and Management, nr.1, vol.1, pp.5-8, 2011

https://www.worldscientific.com/doi/pdf/10.1142/S021759591850001X

 

Ris 74. A.D. Vîlcu, G.E. Vîlcu, “On Quasi-Homogeneous Production Functions”, Mathematical Problems in Symmetry, Vol.8, Nr.11, https://doi.org/10.3390/sym11080976, pp.1-11, 2019, for the paper “A generalization of a class of production functions”, Appl. Econ. Lett. 18 (2011), 1777-1784

https://www.mdpi.com/2073-8994/11/8/976

 

Ris 75. Guennadi A. Khatskevich, Andrei F. Pranevich, “ Production functions with given elasticities of output and production”, Journal of the Belarusian State University. Economics, pp.13-21, 2018, for the paper “A generalization of a class of production functions”, Appl. Econ. Lett. 18 (2011), 1777-1784

https://journals.bsu.by/index.php/economy/article/view/750

 

Ris 76. Aramide Oloidi, “Cyber-security Challenges in Financial Institutions in Nigeria: A Multiple Case Study”, School of Business Administration and Technology Management, 2019 for the paper “The Cournot Equilibrium for n Firms”, The International Conference “European Integration – Realities and Perspectives” 2015, Galati, Proceedings, pp.364-374

https://search.proquest.com/openview/e4532c3f1580f1837453c6faafc42432/1?pq-origsite=gscholar&cbl=18750&diss=y

 

Ris 77. Teka Araya Mebrahtu, Sung-Kyu Lee, ” The impact of agricultural package programs on farm productivity in Tigray-Ethiopia: Panel data estimation”, Cogent Economics & Finance, pp.1-28, 2019 for the paper “Generalized Cobb-Douglas function for three inputs and linear elasticity“, Journal of Accounting and Management, nr.2, vol.4, ISSN: 2284 – 9459, pp.17-22

https://scholar.google.com/scholar_url?url=https://www.tandfonline.com/doi/pdf/10.1080/23322039.2019.1631987&hl=ro&sa=T&oi=ucasa&ct=ufr&ei=0KgyXcb7LL6Cy9YP-8u6kAw&scisig=AAGBfm1w4AAC-ycbfHnmLXR_o6cQJbzTzQ

 

Ris 78. Alex da Silva Alves, Jose Antonio Pimenta-Bueno, „Quantifying the Capital Requirements of Start-Ups in Early Growth Phase: Exploratory Evidence from a Seed Capital Fund in Brazil”, The Journal of Private Equity, Vol.21, Nr.3, 2018, for the paper “Generalized Cobb-Douglas function for three inputs and linear elasticity“, Journal of Accounting and Management, nr.2, vol.4, ISSN: 2284 – 9459, pp.17-22

https://jpe.pm-research.com/content/21/3/26.abstract

 

Ris 79. Farhadian, Reza, „On a New Inequality Related to Consecutive Primes”, Acta Universitatis Danubius: Oeconomica . 2017, Vol. 13 Issue 5, p237-243 for the paper “About Andrica’s conjecture“, Acta Universitatis Danubius, Oeconomica, nr.1, vol.11,2015, ISSN 2065-0175, pp.149-153

https://web.b.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=20650175&AN=126203872&h=ZCwQGqUPX%2bSM%2fAg4KGwGUx2TQUFzvIC1oUlHKnUEqsRlGvjLxSOE4%2b98b9TFzjMQenfyneS7bwC2s0eYT0wjEA%3d%3d&crl=c&resultNs=AdminWebAuth&resultLocal=ErrCrlNotAuth&crlhashurl=login.aspx%3fdirect%3dtrue%26profile%3dehost%26scope%3dsite%26authtype%3dcrawler%26jrnl%3d20650175%26AN%3d126203872

 

Ris 80. G. F. Shafranov-Kutsev, L. V. Gulyayeva, „Career Self-Guidance as a Key Factor in the Development of High School Students’ Competitive Ability and Orientedness”, INTEGRATION OF EDUCATION, Vol.23, Nr.1, pp. 101-153, 2019 petru articolul “Education and Research Institutions. The Professional Orientation Analysis of High School Students“, Acta Universitatis Danubius, Oeconomica, nr.2, vol.10, ISSN 2065-0175, pp.265-275, 2014

http://elar.urfu.ru/bitstream/10995/73937/1/10.15507-1991-9468.090.022.201801.077-090.pdf#page=101

 

Ris 81. L Davcev, N Hourvouliades, J Komic, „Impact of interest rate and inflation on GDP in Bulgaria, Romania and FYROM”, Journal of Balkan and Near Eastern Studies, Vol.20, Nr.2, pp.131-147, 2017, https://doi.org/10.1080/19448953.2018.1379746 for the paper “An analysis on the net export dependence relative to GDP and the consumer demand for Romania during 2001-2011“, Euroeconomica nr.4 (31), ISSN 1582-8859, pp.98-105, 2012

https://www.tandfonline.com/doi/abs/10.1080/19448953.2018.1379746

 

Ris 82. Dan Cui, Xiang Wei, Dianting Wu, Nana Cui, Peter Nijkamp, „Leisure time and labor productivity: a new economic view rooted from sociological perspective”, Economics E-Journal, Vo.13, Nr.36, pp.1-24, DOI: 10.5018/economics-ejournal.ja.2019-36, 2019 for the paper “A Mathematical Model of Working Time and Leisure“, Euroeconomica nr.2 (35), ISSN 1582-8859, pp.41-47, 2016

https://www.econstor.eu/handle/10419/200391

 

Ris 83. Kensuke Ohtake, Atsushi Yagi, “ASYMPTOTIC BEHAVIOR OF SOLUTIONS TO RACETRACK MODEL IN SPATIAL ECONOMY”, Scientiae Mathematicae Japonicae, Vol.81, Nr.1, https://doi.org/10.32219/isms.81.1_65, pp. 65-95, 2018 for the paper “The Complete Solution of the Core-Periphery Model for two Regions Using Successive Approximations“,Acta Universitatis Danubius, Oeconomica, nr.1, vol.8, ISSN 2065-0175, pp.95-106, 2012

https://www.jstage.jst.go.jp/article/isms/81/1/81_65/_article/-char/ja/

 

Ris 84. Novikov Petr Andreevich, Valiev Radik Rifatovich, „Hidden Markov models and neural networks in formation of investment portfolio”, Ucenie Zapiski Kazanskogo Universiteta. Seria Fiziko-matematiceskie Nauki, ISSN 2541-7746, Vol.160, Nr.2, pp.357-363, 2018 for the paper “Analysis of the Evolution of the Gross Domestic Product by Means of Cyclic Regressions“,Acta Universitatis Danubius, Oeconomica, nr.4, vol.7, ISSN 2065-0175, pp.118-130, 2011

https://cyberleninka.ru/article/n/hidden-markov-models-and-neural-networks-in-formation-of-investment-portfolio

 

b) in other national journals (Rno)

Rno 1. Ioan Catalin Angelo, “Degenerate foliations in semi-riemannian manifolds”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.14-53, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/4XIghey6sU.pdf

 

Rno 2. Ioan Catalin Angelo, “Degenerate foliations in Sasakian semi-riemannian manifolds”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.53-60, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/Evc4X7675l.pdf

 

Rno 3. Ioan Catalin Angelo, “Generalized contact structures”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp. 60-68, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/mL9msK56y0.pdf

 

Rno 4. Ioan Catalin Angelo, “Almost Hermitian manifolds with J–invariant sectional curvature”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.68-72, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/OoL16sdl3E.pdf

 

Rno 5. Ioan Catalin Angelo, “Cuasi-Sasaki manifolds”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.72-79, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/R1rM7XZwlL.pdf

 

Rno 6. Ioan Catalin Angelo, “A general type of almost contact manifolds”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.79-86, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/jwL0j19zbd.pdf

 

Rno 7. Ioan Catalin Angelo, “A condition for a Sasakian manifold to be of constant curvature”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp. 86-90, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/hmuvxplY5q.pdf

 

Rno 8. Ioan Catalin Angelo, “A model of confrontation of some companies on the market”, Euroeconomica, Nr.14, ISSN 1582-8859,  pp.68-71, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/tyMB5cbHWc.pdf

 

Rno 9. Ioan Catalin Angelo, “On some equations that can be solved by radicals”, Euroeconomica, Nr.14, ISSN 1582-8859,  pp.71-72, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/3C5i6hWBd7.pdf

 

Rno 10. Ioan Catalin Angelo, “On the positivity of the roots of real polynomials”, Euroeconomica, Nr.14, ISSN 1582-8859,  pp.72-73, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/5u416E6Yzx.pdf

 

Rno 11. Ioan Catalin Angelo, “Approximation of polynomial functions through continuous fractions”, Euroeconomica, Nr.14, ISSN 1582-8859,  pp.73-75, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/xqnCC9y1pw.pdf

 

Rno 12. Ioan Catalin Angelo, “Strings with non-homogeneous linear recurrence”, Euroeconomica, Nr.13, ISSN 1582-8859, pp.68-71, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/izJav39vvj.pdf

 

Rno 13. Ioan Catalin Angelo, “Extrinsic spheres in a cosymplectic manifold”, Euroeconomica, Nr.13, ISSN 1582-8859, pp.71-73, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/KMuZIK7X2g.pdf

 

Rno 14. Ioan Catalin Angelo, “On some groups”, Euroeconomica, Nr.13, ISSN 1582-8859, pp.73-76, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/2oi47t60Lz.pdf

 

Rno 15. Ioan Catalin Angelo, “A generalization of the problem of Euler's circle”, Euroeconomica, Nr.13, ISSN 1582-8859, pp.76-78, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/7W3wmhg6OP.pdf

 

Rno 16. Ioan Catalin Angelo, “Babylonian Mathematics”, Euroeconomica, Nr.12, ISSN 1582-8859, pp.53-57, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/53vmRblZ94.pdf

 

Rno 17. Ioan Catalin Angelo, “Curves poetry”, Danubius Universitas, Year III, nr.9, ISSN 1583-4832, pp.33-36, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AH29HIBnPh.pdf

 

Rno 18. Ioan Catalin Angelo, “Great French mathematicians of the 17th and 18th centuries”, Danubius Universitas, Year III, nr.8, ISSN 1583-4832, pp.10-13, 2005

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/zCs6w54r31.pdf

 

Rno 19. Ioan Catalin Angelo, “Applications of geometry in the study of production functions”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.27-39, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/Pa0e2Qd5bx.pdf

 

Rno 20. Ioan Catalin Angelo, “The Bernoulli family - a century and a half history of mathematics”, EuroEconomica, Nr.11, ISSN 1582-8859, pp.156-159, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/kVgSy6Y351.pdf

 

Rno 21. Ioan Catalin Angelo, “Niels Henrik Abel and Evariste Galois - unfortunate destinies that marked the history of algebra”, EuroEconomica, Nr.11, ISSN 1582-8859, pp.154-156, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/wc0u03h4m1.pdf

 

Rno 22. Ioan Catalin Angelo, “Trends to relaunch the Romanian tourism in the perspective of integration into the European Union - I”, EuroEconomica, Nr.11, ISSN 1582-8859, pp.159-161, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/m8TS2Vnv9j.pdf

 

Rno 23. Ioan Catalin Angelo, “Analysis of Romanian education relative to the census data of March 18, 2002”, EuroEconomica, Nr.10, ISSN 1582-8859, pp.42-43, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/1P76YgT4b8.pdf

 

Rno 24. Ioan Catalin Angelo, “Aspects of Romania's international tourism”, EuroEconomica, Nr.9, ISSN 1582-8859, pp.56-59, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/Pn65lAPSQQ.pdf

 

Rno 25. Ioan Catalin Angelo, “Prime Number Theory - Art and Science I”, EuroEconomica, Nr.9, ISSN 1582-8859, pp.59-63, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/S1oIx955LP.pdf

 

Rno 26. Ioan Catalin Angelo, “The story of the number”, Danubius Universitas, Year II, nr.7, ISSN 1583-4832, pp.7-8, 2004

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/4D1yVQg0N1.pdf

 

Rno 27. Ioan Catalin Angelo, “Interpretation of the 2nd order polynomial regressions according to the fundamental statistical indicators”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.24-28, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/XUP6464WQ7.pdf

 

Rno 28. Ioan Catalin Angelo, “Analysis of economic texts from a lexical point of view”, EuroEconomica, Nr.8, ISSN 1582-8859, pp.18-23, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/08cLC26MbR.pdf

 

Rno 29. Ioan Catalin Angelo, “On continuous fractions”, EuroEconomica, Nr.8, ISSN 1582-8859, pp.23-28, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/d2nTxZ106o.pdf

 

Rno 30. Ioan Catalin Angelo, “Determination of fundamental statistical indicators according to interpolated values”, EuroEconomica, Nr.7, ISSN 1582-8859, pp.22-25, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/heli21678Q.pdf

 

Rno 31. Ioan Catalin Angelo, “Applications of vector spaces in enterprise organization”, EuroEconomica, Nr.7, ISSN 1582-8859, pp.26-28, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/3Ki4T4JpGj.pdf

 

Rno 32. Ioan Catalin Angelo, “Life and work of Leonhard Euler”, EuroEconomica, Nr.6, ISSN 1582-8859, pp.29-31, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/6v8Qod8Z79.pdf

 

Rno 33. Ioan Catalin Angelo, “Coefficients of correlation in tourism activity”, EuroEconomica, Nr.5, ISSN 1582-8859, pp.51-53, 2003

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/daj04nbv57.pdf

 

Rno 34. Ioan Catalin Angelo, “On Riemann's function”, EuroEconomica, Nr.4, ISSN 1582-8859, pp.40-42, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/0uaXLGa7x4.pdf

 

Rno 35. Ioan Catalin Angelo, “Study of errors related to solving linear systems of equations”, EuroEconomica, Nr.3, ISSN 1582-8859, pp.34-36, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/6bJ7gC83qr.pdf

 

Rno 36. Ioan Catalin Angelo, “Models of autoregression of the piezometric levels applied for the Braila Plain”, EuroEconomica, Nr.3, ISSN 1582-8859, pp.68-70, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/Met3dhD77i.pdf

 

Rno 37. Ioan Catalin Angelo, “Interpolation patterns of the piezometric levels applied for the Braila Plain”, EuroEconomica, Nr.3, ISSN 1582-8859, pp.36-37, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/8cS1Bo3t2l.pdf

 

Rno 38. Ioan Catalin Angelo, “Geometric aspects of the Allen production function”, EuroEconomica, Nr.2, ISSN 1582-8859, pp.9-11, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/M9dByqqAUH.pdf

 

Rno 39. Ioan Catalin Angelo, “Spatial geometric aspects of the Allen production function”, EuroEconomica, Nr.2, ISSN 1582-8859, pp.12-14, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/AH6Yam8h91.pdf

 

Rno 40. Ioan Catalin Angelo, “Models of interdependence of the elements of the groundwater circulation applied to the Braila Plain”, EuroEconomica, Nr.2, ISSN 1582-8859, pp.47-51, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/O3syzO4C4D.pdf

 

Rno 41. Ioan Catalin Angelo, “Mensualities”, EuroEconomica, Nr.1, ISSN 1582-8859, pp.12-14, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/x5hOKIEXd2.pdf

 

Rno 42. Ioan Catalin Angelo, “An axiomatic treatment of trigonometric and hyperbolic functions”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.24-28, 2002

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/KC3CG8k3PW.pdf

 

Rno 43. Ioan Catalin Angelo, “Succession of two machines without initial release periods”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.27-30, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/iWaZGN3FYP.pdf

 

Rno 44. Ioan Catalin Angelo, “Grouping and placement of machinery in production facilities”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.31-33, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/3Eo0O181JH.pdf

 

Rno 45. Ioan Catalin Angelo, “Urbanization and landscaping in Romania”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.35-39, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/h4O1slupVN.pdf

 

Rno 46. Ioan Catalin Angelo, “Determining the minimum path in the Bellman-Kalaba algorithm”, The Annals of “Danubius” University, Fascicle I, Economics, ISBN 973-85587-8-6, pp.89-91, 2001

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/KjAHjCoe3V.pdf

 

Rno 47. Ioan Catalin Angelo, “Optimal allocation of employees for work within the firm”, Analele Universităţii Danubius Galati, 2000

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/jJ74yYuAS5.pdf

 

Rno 48. Ioan Catalin Angelo, “Determination of minimum length roads between two points”, Analele Universităţii Danubius Galati, 1999

http://evidentacercetare.univ-danubius.ro/Surse/Set_001/Mu121vI677.pdf

 

Rno 49. Ioan Catalin Angelo, “Mathematicians and time”, Journal of Mathematics, nr.4, 1992

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/j45j1cdGk1.pdf

 

Rno 50. Ioan Catalin Angelo, “Problems for high school” – 21316 – G.M.11-12/1987, pp.473, 21575* - G.M.10/1988, pp.414, 21957* - G.M.11-12/1989, pp.467, 22292* - G.M.2/1991, pp.74, 22345 - G.M.4/1991, pp.156, 22364 - G.M.5/1991, pp.191,22292* - G.M.9/1991, pp.346-347 (solution of the author), 22537 - G.M.11-12/1991, pp.441, Mathematical Gazette, Series B, București

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/2097LV4y2R.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/i0IBq1BM32.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/18iSsBtSOy.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/GW8xN8n9Oi.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AxfCux1aI9.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AxfCux1aI9.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AxfCux1aI9.pdf

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/0zG8JSTS4F.pdf

 

Rno 51. Ioan Catalin Angelo, “Problems for high school” – L49 – Mathematical Magazine in Timisoara, II (XXII), 1/1991, pp.42

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AxfCux1aI9.pdf

 

Rno 52. Ioan Catalin Angelo, “Problems for gymnasium” – 10275 – G.M.7/1991, pp.264, Mathematical Gazette, Series B, București

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/4853SNpCd0.pdf

 

Rno 53. Ioan Catalin Angelo, “Computer problems” – I:36 – Mathematics for students (7), Galati, 1989, pp.127

 

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/AxfCux1aI9.pdf

 

Rno 54. Ioan Catalin Angelo, “Problems for juniors”, Romanian Mathematical Magazine, ISSN:2501-0099, pp.1-1, 2016

http://www.ssmrmh.ro/2016/09/01/romanian-mathematical-magazine-autumn-2016

 

4⁰ Articles, studies published in volumes of scientific events:

 

a)     internationally recognized (with ISSN or ISBN) in the country and abroad (Vi) and b) national (Vn)

Vn 1. Ioan Cătălin Angelo, “Behavior of Production Factors when Changing their Price for a Cobb-Douglas Production Function”, The International Conference “European Integration – Realities and Perspectives” 2021, Galati, Proceedings, pp. 72-74

https://dp.univ-danubius.ro/index.php/EIRP/article/view/156/160

Vn 2. Ioan Cătălin Angelo, Ioan Gina, “The Determination of a Company Production under the Conditions of Minimizing the Production Costs, but Also Profit Maximization”, The International Conference “European Integration – Realities and Perspectives” 2020, Galati, Proceedings, pp.132-136

http://www.proceedings.univ-danubius.ro/index.php/eirp/article/view/2010/2065

Vn 3. Ioan Cătălin Angelo, “The Analyze of the Link Between Minimizing Production Costs and Maximizing Profits”, The International Conference “European Integration – Realities and Perspectives” 2019, Galati, Proceedings

http://www.conferences.univ-danubius.ro/index.php/EIRP/EIRP2019/paper/view/2028

Vn 4. Ioan Catalin Angelo, “About utility” , The International Conference “European Integration - Realities and Perspectives” 2017, Galati, Proceedings, pp.242-245

http://proceedings.univ-danubius.ro/index.php/eirp/article/view/1798/1890

Vn 5. Ioan Catalin Angelo, Ioan Gina, “An Alternative to the Electre Method”, The International Conference “European Integration – Realities and Perspectives” 2018, Galati, Proceedings, pp.119-126

http://proceedings.univ-danubius.ro/index.php/eirp/article/view/1880/1941

Vn 6. Ioan Catalin Angelo, Ioan Gina, “An Analysis of the Production Leader in the Stackelberg Model”, The International Conference “European Integration – Realities and Perspectives” 2018, Galati, Proceedings, pp.113-118

http://proceedings.univ-danubius.ro/index.php/eirp/article/view/1879/1940

Vn 7. Ioan Catalin Angelo, “Analysis Of The Evolution Of Statistics In Romania” , The International Conference “European Integration - Realities and Perspectives” 2016, Galati, Proceedings, pp.386-393

http://www.proceedings.univ-danubius.ro/index.php/eirp/article/view/1705/1772

 

Vn 8. Ioan Catalin Angelo, Ioan Gina “The Cournot Equilibrium for n Firms”, The International Conference “European Integration - Realities and Perspectives” 2015, Galati, Proceedings, pp.364-374

http://www.proceedings.univ-danubius.ro/index.php/eirp/article/view/1626/1496

 

Vn 9. Ioan Catalin Angelo, Ioan Gina, “The Stackelberg Model for a Leader of Production and Many Satellites”, The International Conference “European Integration - Realities and Perspectives” 2015, Galati, Proceedings, pp.359-363

http://www.proceedings.univ-danubius.ro/index.php/eirp/article/view/1625/1495

 

Vn 10. Ioan Catalin Angelo, “The Determination of the Main Indicators of a Production Function Using the Bernoulli Equations“, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, pp.626-635, 2012

http://proceedings.univ-danubius.ro/index.php/eirp/article/viewFile/1268/1231

 

Vn 11. Ioan Catalin Angelo, “The sequence operation in production flows“, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, pp.385 -387, 2011

http://www.proceedings.univ-danubius.ro/index.php/eirp/article/viewFile/936/855

 

Vn 12. Ioan Catalin Angelo, “The choice of optimal decisions in uncertitude situations“, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, pp.377 -379, 2011

http://proceedings.univ-danubius.ro/index.php/eirp/article/viewFile/1072/991

 

Vn 13. Ioan Catalin Angelo, “The optimal assignation of workers on jobs from the point of view of minimization the maximal execution time”, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, 2009

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=624&Itemid=472&lang=ro

Vn 14. Ioan Catalin Angelo, “The space geometry of production functions”, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, 2009

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=624&Itemid=472&lang=ro

Vn 15. Ioan Catalin Angelo, “A Method of Determination of an Aquisition Program in Order to Maximize the Total Utility”, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-606-533-013-9, 2009

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=624&Itemid=472&lang=ro

Vn 16. Ioan Catalin Angelo, “The choice of optimal decisions in uncertitude situations”, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest, ISBN 978-973-30-2409-5, pp.377-379, 2008

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=126%3Aconferinta-internationala-integrare-europeana-realitati-si-perspective-2008&catid=60%3Amanifestari-stiintifice&Itemid=80&lang=ro

Vn 17. Ioan Catalin Angelo, “The sequence operation in production flows”, International Conference “The European Integration – Realities and Perspectives” Galati, Didactic and Pedagogical Publishing House, Bucharest,  ISBN 978-973-30-2049-3, pp.383-386, 2007

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=125%3Aconferinta-internationala-integrare-europeana-realitati-si-perspective-2007&catid=60%3Amanifestari-stiintifice&Itemid=80&lang=ro

Vn 18. Ioan Catalin Angelo, “Applications of the space differential geometry at the study of production functions”, International Conference “The European Integration – Realities and Perspectives” Galati, ISBN 978-973-30-1512-3, pp.388-396, 2006

http://www.univ-danubius.ro/index.php?option=com_content&view=article&id=124%3Aconferinta-internationala-integrare-europeana-realitati-si-perspective-&catid=60%3Amanifestari-stiintifice&Itemid=80&lang=ro

Vn 19. Ioan Catalin Angelo/Turtureanu Anca Gabriela, “The quality resources management”, International Conference on Business, Economics and Management,Yasar University, Izmir Turkey, 2005

Vn 20. Ioan Catalin Angelo/Turtureanu Anca Gabriela, “Brăila – Plain water resources”, The Proceedings of the International Economic Conference, Brasov, Romania, 2005, pp.524-530

b)     national (Vn) 

 

Vn 1. Ioan Catalin Angelo, “Statistical aspects of Romanian higher education in the perspective of integration into the European Union”, in “ Regional development and structural balance of the national economy”, ISBN 973-668-073-8, pp.244-249, 2004

Vn 2. Ioan Catalin Angelo, “The axiom of 2p+1-coholomorphic C-spheres for Kahler varieties”, Proceedings of the National Conference of Geometry and Topology, Târgovişte, 12-14 April 1986, pp.9-12, appeared in 1988

http://evidentacercetare.univ-danubius.ro/Surse/Set_013/wKJKAa6xt8.pdf