Subgroup separability in residually free groups

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We prove that the finitely presentable subgroups of residually free groups are separable and that the subgroups of type $\mathrm{FP}_\infty$ are virtual retracts. We describe a uniform solution to the membership problem for finitely presentable subgroups of residually free groups.
8 pages, no figures

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Group Theory, 20F65 (20E26, 20E05)

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http://salesiana.dossiersoluciones.com/handle/123456789/132628

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4247
 http://arxiv.org/abs/0706.4247

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arXiv