2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/158319We study the boundary regularity of solutions of elliptic operators in divergence form with $C^{0,α}$ coefficients or operators which are small perturbations of the Laplacian in non-smooth domains. We show that, as in the case of the Laplacian, there exists a close relationship between the regularity of the corresponding elliptic measure and the geometry of the domain.32 pagesAnalysis of PDEs35J25, 31B05text