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Local Cohomology, Second Edition by R. Y. Sharp, M. P. Brodmann

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2

Torsion modules and ideal transforms

The first section of this chapter contains the essence of a useful reduction technique in the study of local cohomology modules of finitely generated modules. The main points are these: if M is a finitely generated R-module, then it turns out that the R-module images := Mimages(M) is images-torsion-free, and that images contains a non-zerodivisor ...

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