Hi, my name is İrem Portakal*.

''İ'' is the uppercase of "i" in Turkish. It is pronanciated for example as the german letter "i".

About Me

From September 2023, I will lead the "Interdisciplinary Frontiers of Algebraic Geometry" research group at the Max Planck institute for Mathematics in the Sciences in Leipzig. Until then, I am a postdoc researcher at TU Munich in the research group Mathematical Statistics led by Mathias Drton. I am also an associate of Reinhart-Koselleck-Projekt Reflexive decision and Game Theory led by Wolfgang Spohn.

Before that I was a postdoc researcher in the Nonlinear Algebra Research Group of Bernd Sturmfels at the Max Planck Institute Leipzig and Discrete, Convex and Toric Geometry research group of Benjamin Nill at Otto-von-Guericke-Universität Magdeburg.

I defended my thesis in 2018 at Freie Universität Berlin. I was a PHD Student in Berlin Mathematical School and in the Algebraic Geometry Group of Klaus Altmann. Before, I was a master student at École Normale Supérieure in Lyon and an undergraduate student at Galatasaray University in Istanbul.

July 2023: For my upcoming research group "Interdisciplinary Frontiers of Algebraic Geometry", Max Planck institute for Mathematics in the Sciences in Leipzig offers a 3-year PhD position. The expected starting date of the position is January 1st, 2024. Please spread the word!

June 2023: I will be at my first philosopy workshop on Issues in Dynamic Decision Theory at Konstanz University.

April 2023: Our minisymposium on Algebraic Methods in Graphical Models has been accepted at SIAM Conference on Applied Algebraic Geometry (AG23)!

March 2023: I have been awarded the Entrepreneurial Award from Technical University of Munich as part of the Global Challenges for Women in Math Science!




  • Nonlinear Algebra in Game Theory, in the Oberwolfach Report of the conference “Algebraic Structures in Statistical Methodology” [DOI 10.14760/OWR-2022-55], 2022.

Ongoing projects

  • Algebraic Sparse Factor Analysis: beyond Symmetry, with Mathias Drton, Alexandros Grosdos, and Nils Sturma.
  • A vector bundle approach to Nash equilibria, with Hirotachi Abo and Luca Sodomaco.
  • The Game Theory of Decomposable Graphical Models, with Javier Sendra-Arranz.


Technische Universität München

SoSe 23

SoSe 22

Otto-von-Guericke-Universität Magdeburg

WiSe 20/21

SoSe 20

WiSe 19/20

SoSe 19

WiSe 18/19

SoSe 18

Freie Universität Berlin

WiSe 17/18


Galatasaray University


  • Analyse à une variable I-II, Introduction à la géométrie torique.
  • Abstract Algebra Exercise Session.

Organized Events

Selected Past Activities


E-mail: mail [at] domain
where domain = irem-portakal.de