On residues of Eisenstein series - through a cohomological lens

Joint IAS/Princeton University Number Theory Seminar
Topic:On residues of Eisenstein series - through a cohomological lens
Speaker:Joachim Schwermer
Affiliation:University of Vienna
Date:Thursday, October 12
Time/Room:4:30pm - 5:30pm/Fine 214, Princeton University

The cohomology of an arithmetic subgroup of a reductive algebraic group defined over a number field is closely related to the theory of automorphic forms. We discuss in which way residues of Eisenstein series contribute non-trivially to the subspace of square-integrable classes in these cohomology groups.