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Speaker:

Anke Pohl
Affiliation:

Universität Bremen
Date:

Tue, 2018-09-04 11:30 - 12:00
Location:

MPIM Lecture Hall Since several years it is known that certain discretizations for the geodesic flow on hyperbolic surfaces of *finite area* allow to provide a dynamical characterizations of Maass cusp forms and a dynamical construction of their period functions. An important ingredient for these results is the characterization of Laplace eigenfunctions in parabolic cohomology by Bruggeman--Lewis--Zagier.

We discuss an extension of these results to Hecke triangle surfaces of *infinite area* and automorphic forms that are more general than Maass cusp forms. This is joint work with R. Bruggeman.

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