On conjugacy separability of some coxeter groups and parabolic-Preserving Automorphisms
(2013) Illinois Journal of Mathematics — Vol. 57, n° 2, p. 499-523 (2013)
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- Abstract
- We prove that even Coxeter groups, whose Coxeter diagrams contain no (4, 4, 2) triangles, are conjugacy separable. In particular, this applies to all right-angled Coxeter groups or word hyperbolic even Coxeter groups. For an arbitrary Coxeter group W, we also study the relationship between Coxeter generating sets that give rise to the same collection of parabolic subgroups. As an application, we show that if an automorphism of W preserves the conjugacy class of every sufficiently short element then it is inner. We then derive consequences for the outer automorphism groups of Coxeter groups. © 2014 University of Illinois.
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Caprace, P.-E., & Minasyan, A. (2013). On conjugacy separability of some coxeter groups and parabolic-Preserving Automorphisms. Illinois Journal of Mathematics, 57(2), 499-523. https://hdl.handle.net/2078.5/25839 (Original work published 2013)