2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61049This paper continues our investigation of the dynamics of polynomial diffeomorphisms of C^2. We introduce a dynamical property of polynomial diffeomorphisms that generalizes hyperbolicity in the way that semi-hyperbolicity generalizes hyperbolicity for polynomial maps of the complex plane.43 pages, 2 figuresDynamical Systems37F99Polynomial Diffeomorphisms of $\C^2$. VIII: Quasi-Expansiontext