2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69116Squarefree monomial ideals arising from finite meet-semilattices and their free resolutions are studied. For the squarefree monomial ideals corresponding to poset ideals in a distributive lattice the Alexander dual is computed.16 pagesCommutative AlgebraCombinatorics13D02;13H10;06A12;06D99text