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Virtual retractions, conjugacy separability and omnipotence

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 نشر من قبل Henry Wilton
 تاريخ النشر 2008
  مجال البحث
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 تأليف Henry Wilton




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We use wreath products to provide criteria for a group to be conjugacy separable or omnipotent. These criteria are in terms of virtual retractions onto cyclic subgroups. We give two applications: a straightforward topological proof of the theorem of Stebe that infinite-order elements of Fuchsian groups (of the first type) are conjugacy distinguished, and a proof that surface groups are omnipotent.

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