Speaker: Claus Sorensen (UCSD)

Title: Local Langlands in rigid families

Abstract: The local Langlands correspondence attaches a representation of GL(n,F) to an n-dimensional representation of the Galois group of F (a local field). In the talk I will report on joint work with Johansson and Newton, in which we interpolate the correspondence in a family across eigenvarieties for definite unitary groups U(n). The latter are certain rigid analytic varieties parametrizing Hecke eigensystems appearing in spaces of p-adic modular forms. These varieties carry a natural coherent sheaf and we show that its dual fibers are built from the local Langlands correspondence by taking successive extensions; even at the non-classical points. Our proof employs certain elements of the Bernstein center which occur in Scholze’s trace identity. The first half of the talk is intended for a general audience with a limited background in number theory.

# Number Theory Seminar: Claus Sorensen (UCSD)

When:

February 13, 2018 @ 2:30 pm – 3:30 pm

2018-02-13T14:30:00-10:00

2018-02-13T15:30:00-10:00

Where:

To be determined