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Speaker:

Joachim Schwermer
Affiliation:

University of Vienna
Date:

Thu, 09/03/2023 - 09:30 - 10:30
Location:

MPIM Lecture Hall The talk begins with an expository discussion of the cohomology of non-uniform arithmetic groups, emphasising the problem of constructing cohomology classes of specific types.

Then we consider the significant example of arithmetically defined quotients of (products of) hyperbolic 5-space. Using geometric and automorphic methods we sketch various constructions of classes in these cases.

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