2 papers
math.RT2025
Idempotents, traces, and dimensions in Hecke categories
Ben Elias, Liam Rogel, Daniel Tubbenhauer
We explain how to compute idempotents that correspond to the indecomposable objects in the Hecke category. Closed formulas are provided for some common coefficients that appear in…
math.RT2023
The center of the asymptotic Hecke category and unipotent character sheaves
Liam Rogel, Ulrich Thiel
In 2015, Lusztig [Bull. Inst. Math. Acad. Sin. (N.S.)10(2015), no.1, 1-72] showed that for a connected reductive group over an algebraic closure of a finite field the associated (g…