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The action dimensions of some discrete groups

Presented by: 
Michael Davis Ohio State University, Ohio State University
Date: 
Tuesday 16th May 2017 - 10:00 to 11:00
Venue: 
INI Seminar Room 2
Abstract: 
The geometric dimension of a torsion-free group G is the minimum dimension of a model for BG by a CW complex.  Its action dimension is the minimum dimension of a model for BG by a manifold. I will discuss some recent work with Kevin Schreve and Giang Le in which we compute the action dimension of Artin groups, graph products of groups and other examples of groups which are given as simple complexes of groups.



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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons