Quintasymptotic sequences over an ideal and quintasymptotic cograde

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.