Deligne-Lusztig varieties, toric orbifolds, and the q-Klyachko algebra
Speaker:
Ruizhen Liu (University of Toronto)
Date and Time:
Friday, November 21, 2025 - 3:15pm to 4:45pm
Location:
Fields Institute, Room 210
Abstract:
The q-Klyachko algebra was introduced lately by Nadeau and Tewari in their study of q-divided symmetrisation. This algebra is equipped with a degree map which computes the q-divided symmetrisation. Inspired by works of Abe--Zeng, Katz--Kutler, and Langer, I will describe two geometric interpretations of the q-Klyachko algebra: a compactified Deligne--Lusztig variety and a toric orbifold. Time permitting, I will also discuss some open problems and directions for further work.

