1. Jun 2023
Hecke algebra action on stable basis
Algebraic Geometry and Number Theory Seminar
Datum: 1. June 2023 |
Sprecher: Jakub Koncki, IMPAN, Warsaw
Veranstaltungsort: Heinzel Seminar Room (I21.EG.101), Office Building West, ISTA
Many characteristic classes of singular varieties are defined using resolution of singularities. I will show that the stable basis for a generalized flag variety may be constructed in this way. The geometry of Bott-Samelson resolution of singularities induces a Hecke-type algebra action. It allows for an effective computation of stable basis. This formula was previously known in the special case of canonical slope. The talk is based on a joint work with A. Weber.