2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157324We give refined statements and modern proofs of Rosenlicht's results about the canonical model C' of an arbitrary complete integral curve C. Notably, we prove that C and C' are birationally equivalent if and only if C is nonhyperelliptic, and that, if C is nonhyperelliptic, then C' is equal to the blowup of C with respect to the canonical sheaf ω. We also prove some new results: we determine just when C' is rational normal, arithmetically normal, projectively normal, and linearly normal.28 pages, no figures, IV Congresso Iberoamericano de Geometria ComplexaAlgebraic Geometry14H20 (Primary); 14H45, 14H51 (Secondary)text