2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146939This paper has been withdrawn by the auther due to an errorThis paper has been withdrawnCommutative AlgebraAlgebraic Geometry13B25, 13C15, 13F05, 13F20, 14H50Affine curves in characteristic zero are not always set theoretic complete intersectionstext