SEMINAR: Groups and Combinatorics Seminar: Quasi-isometry and commensurability for right-angled Coxeter groups
|Groups and Combinatorics Seminar: Quasi-isometry and commensurability for right-angled Coxeter groups
Anne Thomas (University of Glasgow)
will speak on
Quasi-isometry and commensurability for right-angled Coxeter groups
at 3pm Friday 1 August in Weatherburn Lecture Theatre
Let Gamma be a finite simple graph with vertex set S. The associated right-angled Coxeter group W_Gamma is the group with generating set S, and relations s^2 = 1 for all s in S and st = ts if and only if s and t are adjacent vertices. We investigate the classification of such W_Gamma up to quasi-isometry, which is a "coarse" equivalence relation on finitely generated groups formulated by Gromov, and also up to commensurability, where two groups G and H are commensurable if they have isomorphic finite index subgroups. Our methods are geometric and topological. This is joint work with Pallavi Dani (Louisiana State University) and Emily Stark (Tufts University).
Weatherburn Lecture Theatre, Ground Floor, Mathematics Building, UWA
Fri, 01 Aug 2014 15:00
Fri, 01 Aug 2014 16:00
Michael Giudici <[email protected]>
Tue, 29 Jul 2014 13:31
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