%0 Journal Article %T Liaison with Cohen-Macaulay Modules %A Robin Hartshorne %J Mathematics %D 2005 %I arXiv %X We 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. %U http://arxiv.org/abs/math/0512108v1