Liftable integral closure
Commutative Algebra
2014-07-24 v3
Abstract
We develop the basic properties of an essentially new closure operation on submodules, the \emph{liftable integral closure} of a submodule, including its relationships with the two prevailing notions of integral closure of submodules. We show that for a quite general class of local rings, every finite length module may be represented as a quotient of the form , where is torsionless and integrally dependent on .
Cite
@article{arxiv.1309.6966,
title = {Liftable integral closure},
author = {Neil Epstein and Bernd Ulrich},
journal= {arXiv preprint arXiv:1309.6966},
year = {2014}
}
Comments
section 6 removed; 18 pages; comments welcome