Irem Portakal

I am a postdoctoral researcher in the Discrete, Convex and Toric Geometry research group of Benjamin Nill at Otto-von-Guericke-Universität Magdeburg. I defended my thesis in April 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 Ecole Normale Superieure in Lyon.

OvGU Magdeburg
Universitätsplatz 2
Gebäude 03, Raum 207b
39106 Magdeburg Germany

Telephone: 0391-67-58350

Email: irem [point] portakal [at] ovgu [dot] de

Research Interests: Deformation Theory of Toric Varieties and T-Varieties, Mutations of lattice polytopes, Edge Cones, Torus actions on matrix Schubert varieties and Kazhdan-Lusztig varieties.


  • On the classification of rigid toric varieties arising from bipartite graphs, under preparation.

  • Rigid toric matrix Schubert varieties, under preparation.

  • A note on deformations and mutations of fake weighted projective planes, to appear in to proceedings of the 2018 Summer Workshop on Lattice Polytopes at Osaka University.[arXiv:1809.04470]

  • Rigidity of toric varieties associated to bipartite graphs, PHD Thesis, online at Freie Universität Berlin.

Organization: 10th anniversary of the What is…?" seminar of Berlin Mathematical School on 8 June 2018