2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/224229We discuss various known generalizations of the classical Hartogs' extension theorem on Stein spaces with arbitrary singularities and present an analytic proof based on d-bar methods.References added; improved proofs in section 5; section 6 in the previous version moved to preprint arxiv:0903.3922Complex Variables32B10; 32J25; 32W05;14C30text