2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148426We prove a base point free theorem for nef and log big divisors on log canonical surfaces.4 pages, AMS-TeX v2.1, the former title ``A Base Point Free Theorem for Logcanonical Surfaces'' changed, the published version (the source file of the version 1 was in trouble with processing)Algebraic Geometry14C20 (Primary); 14J10 (Secondary)text