On S-quasi-Dedekind Modules

Abdoul Djibril Diallo, Papa Cheikhou Diop and Mamadou Barry

Journal of Mathematics Research, 2017, vol. 9, issue 5, 97-107

Abstract: Let $R$ be a commutative ring and $M$ an unital $R$-module. A proper submodule $L$ of $M$ is called primary submodule of $M$, if $rm\in L$, where $r\in R$, $m\in M$, then $m\in L$ or $r^{n}M\subseteq L$ for some positive integer $n$. A submodule $K$ of $M$ is called semi-small submodule of $M$ if, $K+L\neq M$ for each primary submodule $L$ of $M$. An $R$-module $M$ is called S-quasi-Dedekind module if, for each $f\in End_{R}(M),$ $ f\neq 0$ implies $Kerf$ semi-small in $M$. In this paper we introduce the concept of S-quasi-Dedekind modules as a generalisation of small quasi-Dedekind modules, and gives some of their properties, characterizations and exemples. Another hand we study the relationships of S-quasi-Dedekind modules with some classes of modules and their endomorphism rings.

Keywords: Primary submodules; semi-small submodules; quasi-Dedekind modules; S-quasi-Dedekind modules (search for similar items in EconPapers)
Date: 2017
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