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arXiv:math/0608685 [math.GR]AbstractReferencesReviewsResources

On the residual finiteness of outer automorphisms of relatively hyperbolic groups

V. Metaftsis, M. Sykiotis

Published 2006-08-28, updated 2009-07-29Version 3

We show that every virtually torsion-free subgroup of the outer automorphism group of a conjugacy separable relatively hyperbolic group is residually finite. As a direct consequence, we obtain that the outer automorphism group of a limit group is residually finite.

Comments: 11 pages, 1 figure. Section 3 is replaced by Theorem 1.3. More detailed arguments. Added new references. To appear in Journal of Pure and Applied Algebra
Categories: math.GR, math.GT
Subjects: 20F65, 20F67, 20E26, 20E36, 20F28
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