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Conjugacy in normal subgroups of hyperbolic groups

By Armando Martino and Ashot Minasyan

Abstract

Let N be a finitely generated normal subgroup of a Gromov hyperbolic group G. We establish criteria for N to have solvable conjugacy problem and be conjugacy separable in terms of the corresponding properties of G/N. We show that the hyperbolic group from F. Haglund's and D. Wise's version of Rips's construction is hereditarily conjugacy separable. We then use this construction to produce first examples of finitely generated and finitely presented conjugacy separable groups that contain non-(conjugacy separable) subgroups of finite index

Topics: QA
Year: 2012
OAI identifier: oai:eprints.soton.ac.uk:142319
Provided by: e-Prints Soton

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