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arxiv: math/0107115 · v1 · pith:3EQS6ILRnew · submitted 2001-07-16 · 🧮 math.GR

A note on a theorem of Bowditch

classification 🧮 math.GR
keywords groupbowditchcorollarygroupshyperbolicnotetwo-endedboundary
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Bowditch showed that a one-ended hyperbolic group which is not a triangle group splits over a two-ended group if and only if its boundary has a local cut point. As a corollary one obtains that splittings of hyperbolic groups over two-ended groups are preserved under quasi-isometries. In this note we give a more direct proof of this corollary.

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