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Monday, January 28, 2019 — 4:00 PM EST

Michael Lipnowski, McGill University

"Algorithms for the topology of arithmetic groups"

Integer matrix Lie groups \Gamma carry extremely deep arithmetic information.  Topological invariants of \Gamma are particularly interesting.  I will describe an algorithm which, given \Gamma, computes the homology of \Gamma together with the action of certain correspondences on it (Hecke operators).  Joint work with Aurel Page.

MC 5501

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