2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/75650We show that there are no partially hyperbolic horseshoes with positive Lebesgue measure for diffeomorphisms whose class of differentiability is higher than 1. This generalizes a classical result by Bowen for uniformly hyperbolic horseshoes.10 pagesDynamical Systems37D30text