Central Extensions of Word Hyperbolic Groups

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dc.creatorNeumann, Walter
dc.creatorReeves, Lawrence
dc.date1995-07-13
dc.date.accessioned2026-07-07T09:15:21Z
dc.date.available2026-07-07T09:15:21Z
dc.descriptionThurston has claimed (unpublished) that central extensions of word hyperbolic groups by finitely generated abelian groups are automatic. We show that they are in fact biautomatic. Further, we show that every 2-dimensional cohomology class on a word hyperbolic group can be represented by a bounded 2-cocycle. This lends weight to the claim of Gromov that for a word hyperbolic group, the cohomology in every dimension is bounded.
dc.descriptionPlain Tex, 9 pages, no figures
dc.identifierhttps://arxiv.org/abs/math/9507201
dc.identifierhttp://arxiv.org/abs/math/9507201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/152990
dc.subjectGroup Theory
dc.titleCentral Extensions of Word Hyperbolic Groups
dc.typetext

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