English

Analytic Deviation One Ideals and Test Modules

Commutative Algebra 2011-09-05 v2

Abstract

Let A be a Cohen-Macaulay local ring of dimension d and I an ideal in A. Let M be a finitely generated maximal Cohen-Macaulay A-module. Let I be a locally complete intersection ideal of analytic deviation one and reduction number at most one. We prove that the polynomial given by length(Tor1A(M,A/In+1))length(Tor^{A}_{1}(M,A/I^{n+1})) either has degree d-1 or FI(M)F_I(M) is a freeF(I)F(I)-$module.

Keywords

Cite

@article{arxiv.1108.5933,
  title  = {Analytic Deviation One Ideals and Test Modules},
  author = {Ganesh S. Kadu and Tony J. Puthenpurakal},
  journal= {arXiv preprint arXiv:1108.5933},
  year   = {2011}
}
R2 v1 2026-06-21T18:57:09.122Z