Codimension one subgroups and boundaries of hyperbolic groups

We construct hyperbolic groups with the following properties: The boundary of the group has big dimension, it is separated by a Cantor set and the group does not split. This shows that Bowditch's theorem that characterizes splittings of hyperbolic groups over 2-ended groups in terms of the boun...

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Main Authors: Delzant, T, Papasoglu, P
Format: Journal article
Language:English
Published: 2008
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author Delzant, T
Papasoglu, P
author_facet Delzant, T
Papasoglu, P
author_sort Delzant, T
collection OXFORD
description We construct hyperbolic groups with the following properties: The boundary of the group has big dimension, it is separated by a Cantor set and the group does not split. This shows that Bowditch's theorem that characterizes splittings of hyperbolic groups over 2-ended groups in terms of the boundary can not be extended to splittings over more complicated subgroups.
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spelling oxford-uuid:e5e38b5a-9c02-4fea-8104-1d4c0ee2d4ee2022-03-27T10:27:09ZCodimension one subgroups and boundaries of hyperbolic groupsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e5e38b5a-9c02-4fea-8104-1d4c0ee2d4eeEnglishSymplectic Elements at Oxford2008Delzant, TPapasoglu, PWe construct hyperbolic groups with the following properties: The boundary of the group has big dimension, it is separated by a Cantor set and the group does not split. This shows that Bowditch's theorem that characterizes splittings of hyperbolic groups over 2-ended groups in terms of the boundary can not be extended to splittings over more complicated subgroups.
spellingShingle Delzant, T
Papasoglu, P
Codimension one subgroups and boundaries of hyperbolic groups
title Codimension one subgroups and boundaries of hyperbolic groups
title_full Codimension one subgroups and boundaries of hyperbolic groups
title_fullStr Codimension one subgroups and boundaries of hyperbolic groups
title_full_unstemmed Codimension one subgroups and boundaries of hyperbolic groups
title_short Codimension one subgroups and boundaries of hyperbolic groups
title_sort codimension one subgroups and boundaries of hyperbolic groups
work_keys_str_mv AT delzantt codimensiononesubgroupsandboundariesofhyperbolicgroups
AT papasoglup codimensiononesubgroupsandboundariesofhyperbolicgroups