2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125495This 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.3 pagesGroup Theory20F67text