2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160105In this paper, existence and localization results of $C^1$-solutions to elliptic Dirichlet boundary value problems are established. The approach is based on the nonlinear alternative of Leray-Schauder.4 pages, 0 figureAnalysis of PDEs35J20, 35J65, 47H10text