Joint IAS/Princeton University Number Theory Seminar

Torsion in the coherent cohomology of Shimura varieties and Galois representations

In this talk we will explain how to attach Galois representations to certain Hecke eigenforms in the coherent cohomology of good reduction Shimura varieties. As an application we will give a new proof of cases of a recent theorem of Scholze attaching Galois representations to certain torsion classes in the cohomology of arithmetic locally symmetric spaces. The main tool will be some "generalized Hasse invariants" on the Ekedahl-Oort strata of the special fiber of the Shimura variety.

Date & Time

April 24, 2014 | 4:30pm – 5:30pm

Location

S-101

Speakers

George Boxer

Affiliation

Harvard University

Event Series

Categories