Organizer:崔沛仪Speaker:崔沛仪(YMSC)Time:Wednesday, 13:30 - 15:00June 24, 2026Venue:A513, Shuangqing Complex Building AAbstract:This is a study seminar aiming at understanding Dat-Fintzen's article "Parametrization and reduction to depth zero of Z[1/p]-blocks of tame p-adic groups." This week, we will study Section 2 and Section 3 of this article. The goal is to understand the reduction t...
Abstract:Let G be a reductive group over an algebraically closed field and W be its Weyl group. Using Coxeter elements, Steinberg constructed cross-sections of the adjoint quotient of G which also yield transversal slices of regular unipotent classes. In 2012, He and Lusztig constructed transversal slices using minimal length elements in elliptic conjugacy classes in W, which yield transversal...