2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/62741We study the steady uniphase and multiphase solutions of the discretized nonlinear damped wave equation.Conditions for the stability abd instability of the steady solutions are given;in the instability case the linear stable and unstable associated manifolds are described.19 pagesAnalysis of PDEs39A13;35B10text