English

On two versions of Cohen's theorem for modules

Commutative Algebra 2022-06-01 v1

Abstract

Parkash and Kour obtained a new version of Cohen's theorem for Noetherian modules, which states that a finitely generated RR-module MM is Noetherian if and only if for every prime ideal p\mathfrak{p} of RR with Ann(M)p(M)\subseteq \mathfrak{p}, there exists a finitely generated submodule NpN^\mathfrak{p} of MM such that pMNpM(p)\mathfrak{p} M\subseteq N^\mathfrak{p}\subseteq M(\mathfrak{p}), where M(p)={xMsxpMM(\mathfrak{p})=\{x\in M\mid sx\in \mathfrak{p} M for some sRp}s\in R \setminus \mathfrak{p} \}. In this paper, we generalize the Parkash and Kour version of Cohen's theorem for Noetherian modules to those for SS-Noetherian modules and ww-Noetherian modules.

Keywords

Cite

@article{arxiv.2205.15583,
  title  = {On two versions of Cohen's theorem for modules},
  author = {Xiaolei Zhang and Hwankoo Kim and Wei Qi},
  journal= {arXiv preprint arXiv:2205.15583},
  year   = {2022}
}
R2 v1 2026-06-24T11:34:06.774Z