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OPEN ACCESS eISSN 0454-8124
pISSN 1225-6951
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Kyungpook Mathematical Journal 2023; 63(1): 29-36

Published online March 31, 2023

Copyright © Kyungpook Mathematical Journal.

On Two Versions of Cohen's Theorem for Modules

Xiaolei Zhang and Wei Qi, Hwankoo Kim∗

School of Mathematics and Statistics, Shandong University of Technology, Zibo 255049, China
e-mail : zxlrghj@163.com and qwrghj@126.com

Division of Computer Engineering, Hoseo University, Asan 31499, Republic of Korea
e-mail : hkkim@hoseo.edu

Received: October 16, 2021; Revised: July 25, 2022; Accepted: August 8, 2022

Abstract

Parkash and Kour obtained a new version of Cohen's theorem for Noetherian modules, which states that a finitely generated R-module M is Noetherian if and only if for every prime ideal 𝔭 of R with Ann(M) 𝔭, there exists a finitely generated submodule N𝔭 of M such that 𝔭MN𝔭M(𝔭), where M(𝔭)={xMsx 𝔭M for some sR 𝔭}. In this paper, we generalize the Parkash and Kour version of Cohen's theorem for Noetherian modules to S-Noetherian modules and w-Noetherian modules.

Keywords: Cohen's theorem, S-Noetherian modules, w-Noetherian modules.