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On stable norm in word hyperbolic groups

Jean-Philippe Preaux
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Abstract

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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Jean-Philippe Preaux. 2007-03-09. On stable norm in word hyperbolic groups. https://arxiv.org/abs/math/0703279

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