Topology & Geometric Group Theory Seminar

Spring 2008

1:30 - 2:30, Malott 207

Tuesday, February 19

Anne Thomas, Cornell University

Existence, covolumes and commensurators of lattices acting on polyhedral complexes

We compare several properties of lattices in semisimple Lie groups and lattices in automorphism groups of polyhedral complexes, such as Davis complexes and right-angled buildings. Questions considered include existence of lattices, their covolumes and (in joint work with A. Barnhill) their commensurators.

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