English

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 T/LT/L, where TT is torsionless and integrally dependent on LL.

Keywords

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

R2 v1 2026-06-22T01:34:52.032Z