Some results on relative dual Baer property
Some results on relative dual Baer property
Let $R$ be a ring.
In this article, we introduce and study relative dual Baer property.
We characterize $R$-modules $M$ which are $R_R$-dual Baer, where $R$ is a commutative principal ideal domain.
It is shown that over a right noetherian right hereditary ring $R$, an $R$-module $M$ is $N$-dual Baer for
all $R$-modules $N$ if and only if $M$ is an injective $R$-module.
It is also shown that for $R$-modules $M_1$, $M_2$, $\ldots$, $M_n$ such that $M_i$ is $M_j$-projective for all
$i > j \in \{1,2,\ldots, n\}$, an $R$-module $N$ is $\bigoplus_{i=1}^nM_i$-dual Baer if and only if $N$ is
$M_i$-dual Baer for all $i\in \{1,2,\ldots,n\}$.
We prove that an $R$-module $M$ is dual Baer if and only if $S=End_R(M)$ is a Baer ring
and $IM=r_M(l_S(IM))$ for every right ideal $I$ of $S$.
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- Başlangıç: 2015
- Yayıncı: İrfan ŞİAP
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