Curriculum Vitae


Current: Assistant Professor of Mathematics

Position: Galatasaray University

Çırağan cad. No:36 Ortaköy 34349 İSTANBUL
Telephone: 90 (212) 227 44 80, Ext: 462 [office]
Facsimile: 90 (212)  227 53 45
E-mail: ayildizulus@gmail.com



Ph.D. in Applied Mathematics, University of Paris I- Panthéon-Sorbonne, Paris, France, October 2003.
Thesis Title: Contributions to General Equilibrium Theory without  Nonsatiation Assumption.
Supervisor: Bernard Cornet (http://cermsem.univ-paris1.fr/cornet/cornet-vitae.htm).
Committee: Cuong Le Van (Chair), Heracles Polemarchakis (referee), Herve Cres (referee), Seyfettin Gürsel, Jean-Marc Bonnisseau.

M.S in Applied Mathematics, (D.E.A. in Modelisation and Mathematical Methods in Economy (equivalent of M.S. in France), University of Paris I-Panthéon-Sorbonne, Paris, France, September 1999.

B.S. in Mathematics, Middle East Technical University, Ankara, Turkey, July 1996.

High School Diploma, Ankara Fen Lisesi, Ankara, Turkey, 1988-1991.




Teaching Assistant and Instructor, Department of MASS (Applied Mathematics) in Universityof Paris I-Panthéon-Sorbonne, Paris, 2002-2003.

Assistant Professor, Faculty of Engineering and Technology, Department of Computer Engineering, Galatasaray University, İstanbul, 2003-2006.

Assistant Professor, Faculty of Arts and Science, Department of Mathematics, Galatasaray University, İstanbul, 2006-present.



Publication Award of Galatasaray Association and Galatasaray University, 2004; 2012; 2013.
Graduate fellowship from Ministry of Education of Turkish Republic and University of Galatasaray, 1997-2003.
National Merit Scholarship, Middle East Technical University, 1991-1996.


Publications in Refereed Journals

  1. “Equilibrium theory with a measure space of possibly satiated consumers” (with Bernard Cornet and Mihaela Topuzu, Journal of Mathematical Economics (2003), Vol. 39, 3-4, 175-196).
  2. “Cyclic Contractions on G-Metric Spaces" (with E. Karapınar, I. M. Erhan, Absract and Applied Analysis, 15  pp., 2012 , DOI: 10.1155/2012/182947).
  3. “Fixed Point Theorem for Cyclic Maps on Partial Metric Spaces" (with E.Karapınar and I.M.Erhan, Applied Mathematics and Information Sciences (AMIS), 239-244 pp., 2012).
  4. "On the Relationship between Tariff Levels and the Nature of Mergers" (with H. M.Yildiz,  The B. E. Journal of Economic Analysis&Policy, article 62 pp., 2012 , DOI: 10.1515/1935-1682.3026).
  5. "Teaching the Diagonalization Concept in Linear Algebra with Technology: A Case Study at Galatasaray University" (Turkish Online Journal of Educational Technologies (TOJET), pp.119-130, 2013-I).

Research Papers
“Equilibria without nonsatiation” (with Michael Florig, appeared in Cahiers de la Maison des Sciences Economiques, Serie Bleue 2002.107)

“Equilibria with slack and monetary equilibria with a measure space of consumers” (with Bernard Cornet, appeared in Cahiers de  la Maison des Sciences Economiques, Serie Bleue 2003.57).

“Core equivalence theorem without nonsatiation”, work in progress.

“The fixed point argument in general equlibrium existence problem”, work in progress.

Presented “Equilibria without nonsatiation”  at:
·CERMSEM, Internal Seminar, Paris, France, November 2001.

·Oiko NOMIA Seminar, Paris, France, January 2001.

·Department of Industrial Engineering Internal Seminar, Galatasaray University, İstanbul, Turkey, February 2004.

·Department of Economics, Sabanci University, İstanbul, Turkey, April 2004 (Invited).   



Presented “Equilibrium theory with a measure space of possibly satiated consumers” at :

·1st National Applied Mathematics Conference of SMAI (Société de Mathématiques Appliquées et Industrie), Pompadour, France, June 2001.

·Eleventh Workshop in General Equilibrium Theory, Athenes, Greece, May 2002.
· MSE (Maison de Sciences Economiques) Meetings, Paris, France, March 2003.
·Groupe MODE of SMAI Meetings, Pau, France, March 2003.

Presented “Core equivalence theorem without nonsatiation” at:

· Group MODE of SMAI Meetings, Le Havre, France, March 2004.
· Murat Sertel’s Memorial Conference on Economic Theory, Istanbul, Turkey, May 2004.

Presented “The fixed point argument in general equlibrium existence problem” at:


Referee for
Journal of Mathematical Economics


University Service
Vice Chair, Department of Mathematics, 2006-present.
Erasmus Exchange Program, Department of Mathematics Representative, 2006–present.
Member of Organizing Committee of  PET02 (Public Economics Theory 2002), Paris, France, June 2002.
Member of Organizing Committee of AGAHF, İstanbul, Turkey, June 2005.
Chair of Organizing Committee of İstanbul Workshop on Fixed Point Theory and Applications, October 2012.


Birth Year: 1973

Marital Status: married with two children