2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70335Automorphisms of handlebodies arise naturally in the a classification of automorphisms of three-manifolds. Among automorphisms of handlebodies, there are certain automorphisms called irreducible (or generic), which are analogues of pseudo-Anosov automorphisms of surfaces. We show that irreducible automorphisms of handlebodies exist and develop methods for constructing a range of examples.20 pages, 11 FiguresGeometric Topology57M99text