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SEMINAR: Groups and Combinatorics Seminar: Quasi-isometry and commensurability for right-angled Coxeter groups

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Today's date is Tuesday, December 01, 2020
Groups and Combinatorics Seminar: Quasi-isometry and commensurability for right-angled Coxeter groups Other events...
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

Abstract: 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).
Speaker(s) Anne Thomas
Location Weatherburn Lecture Theatre, Ground Floor, Mathematics Building, UWA
Contact Michael Giudici <[email protected]>
Start Fri, 01 Aug 2014 15:00
End Fri, 01 Aug 2014 16:00
Submitted by Michael Giudici <[email protected]>
Last Updated Tue, 29 Jul 2014 13:31
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