2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106098We describe some recent work concerning Gorenstein liaison of codimension two subschemes of a projective variety. Applications make use of the algebraic theory of maximal Cohen-Macaulay modules, which we review in an Appendix.16 pagesAlgebraic Geometry14M06; 14M07; 13C40; 13C14text