*-transforms of acyclic complexes

Abstract

Let R be an n-dimensional Cohen-Macaulay local ring and Q a parameter ideal of R. Suppose that an acyclic complex (F, ) of length n of finitely generated free R-modules is given. We put M = Im 1, which is an R-submodule of F0. Then F is an R-free resolution of F0/M. In this paper, we describe a concrete procedure to get an acyclic complex of length n that resolves F0/(M : Q).

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