Subgroup separability in residually free groups |
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| Authors: | Martin R. Bridson Henry Wilton |
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| Affiliation: | (1) Mathematics Department, Imperial College London, London, SW7 2AZ, UK;(2) Department of Mathematics, 1 University Station C1200, Austin, TX 78712-0257, USA |
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| Abstract: | We prove that the finitely presentable subgroups of residually free groups are separable and that the subgroups of type  are virtual retracts. We describe a uniform solution to the membership problem for finitely presentable subgroups of residually free groups. |
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