2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/62722We define local residues of holomorphic 1-forms on an isolated surface singularity that have isolated zeros and prove that a certain residue equals the index of the 1-forms.minor typographical errors corrected, 16pages, to appear in man. mathAlgebraic Geometry14B05;32S99text