Bulletin of the Iranian Mathematical Society

Bulletin of the Iranian Mathematical Society

Quintasymptotic sequences over an ideal and quintasymptotic cograde

Document Type : Research Paper

Authors
1 Department of Mathematics‎, ‎University of Tabriz
2 Department of Mathematics‎, ‎University of Tabriz‎
Abstract
‎Let $I$ denote an ideal of a Noetherian ring $R$‎. ‎The purpose of‎
‎this article is to introduce the concepts of quintasymptotic‎
‎sequences over $I$ and quintasymptotic cograde of $I$‎, ‎and to show that they play a role analogous to quintessential sequences‎
‎over $I$ and quintessential cograde of $I$‎. ‎We show that‎, ‎if $R$ is‎
‎local‎, ‎then the quintasymptotic cograde of $I$ is unambiguously‎
‎defined and behaves well when passing to certain related local‎
‎rings‎. ‎Also‎, ‎we use this cograde to characterize two classes‎
‎of local rings‎.
Keywords
Subjects

Volume 40, Issue 4 - Serial Number 4
August 2014
Pages 941-959

  • Receive Date 08 January 2013
  • Revise Date 10 June 2013
  • Accept Date 11 July 2013