On stable norm in word hyperbolic groups

This work is concerned with the stable norm in word hyperbolic groups as defined by Gromov. We give a short elementary proof of one of its basic property, that is existence of a computable uniform non null lower bound for stable norm in a word hyperbolic group.

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Bibliographic Details
Published in:arXiv.org 2007-03
Main Author: Jean-Philippe Preaux
Format: Article
Language:English
Online Access:Get full text
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Summary:This work is concerned with the stable norm in word hyperbolic groups as defined by Gromov. We give a short elementary proof of one of its basic property, that is existence of a computable uniform non null lower bound for stable norm in a word hyperbolic group.
ISSN:2331-8422