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arXiv 2203.02463math.AC
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模的模零化子表示的本质理想

Essential ideals represented by mod-annihilators of modules

Rameez Raja, Shariefuddin Pirzada

摘要:

设$R$是一个有单位元的交换环,$M$是一个酉$R$ -模,$G$是一个有限阿贝尔群(可看作是一个$\mathbb{Z}$ -模).本文的主要目的是研究$M$的模零化子的性质。对于$x \in M$,我们研究了$M$的模零化子对应的$R$的理想$[x : M] =\{r\in R | rM\subseteq Rx\}$.我们研究了当$[x : M]$是$R$的本质理想时.证明了模零化子表示的本质理想的任意交是本质理想。我们观察到$[x : M]$是单射的当且仅当$R$是非奇异的并且$R/[x : M]$的根是零。此外,如果$M$的本质基柱是非零的,那么我们证明了$[x : M]$是极大理想和$[x : M]^2 = [x : M]$的交集。最后讨论了$R$的本质理想与由$R$上的$M$实现的零化图的顶点之间的对应关系.

英文摘要:

Let $R$ be a commutative ring with unity, $M$ be a unitary $R$-module and $G$ a finite abelian group (viewed as a $\mathbb{Z}$-module). The main objective of this paper is to study properties of mod-annihilators of $M$. For $x \in M$, we study the ideals $[x : M] =\{r\in R | rM\subseteq Rx\}$ of $R$ corresponding to mod-annihilator of $M$. We investigate that when $[x : M]$ is an essential ideal of $R$. We prove that arbitrary intersection of essential ideals represented by mod-annihilators is an essential ideal. We observe that $[x : M]$ is injective if and only if $R$ is non-singular and the radical of $R/[x : M]$ is zero. Moreover, if essential socle of $M$ is non-zero, then we show that $[x : M]$ is the intersection of maximal ideals and $[x : M]^2 = [x : M]$. Finally, we discuss the correspondence of essential ideals of $R$ and vertices of the annihilating graphs realized by $M$ over $R$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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