2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228924We show that the smooth torsion of bundles of manifolds constructed by Dwyer, Weiss, and Williams satisfies the axioms for higher torsion developed by Igusa. As a consequence we obtain that the smooth Dwyer-Weiss-Williams torsion is proportional to the higher torsion of Igusa and Klein.37 pagesAlgebraic TopologyK-Theory and Homology19J10; 55R10text