2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/72890The core of an ideal is the intersection of all its reductions. For large classes of ideals I we explicitly describe the core as a colon ideal of a power of a single reduction and a power of I.to appear in Math. AnnCommutative AlgebraAlgebraic Geometry13B22, 13A30, 13B21, 13C40,13H10text