On residues of Eisenstein series - through a cohomological lens

On residues of Eisenstein series - through a cohomological lens

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Joachim Schwermer , University of Vienna
Fine Hall 214

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.