Algebraic Geometry Seminar

Apr 29

Laura Rider, University of Georgia

Nearby cycles for parity sheaves and the affine Hecke category
Fine Hall 314 / -

Achar recently introduced a “nearby cycles formalism” in the framework of chain complexes of parity sheaves. In this talk, I’ll explain joint work with Achar in… See Full Abstract

May 06

Frans Oort, Universiteit Utrecht

Hecke orbits and foliations
IAS - Simonyi Hall Seminar Room SH-101 / -

Motivation. Isogenies with a given polarized abelian variety give moduli points in a Hecke orbit. In characteristic zero any Hecke orbit is dense in this moduli space… See Full Abstract