A note on weakly clean rings

A note on weakly clean rings
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DOI:
10.1007/s10474-011-0100-8
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发表时间:
2011-04
影响因子:
0.9
通讯作者:
A. Chin;K. T. Qua
A. Chin;K. T. Qua
中科院分区:
数学3区
文献类型:
--
作者:
A. Chin;K. T. Qua

文献摘要

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设R是一个有单位元的结合环。一个元素x∊Ri称为弱清洁的,如果x=u+orx=u−e对某些单位和幂等元R。如果环的所有元素都是弱清洁的,那么环就是弱清洁的。在这篇文章中,我们得到了交换弱清洁环的元素刻画。还得到了单位正则环与弱洁净环之间的关系。
LetRbe an associative ring with identity. An elementx∊Ris said to be weakly clean ifx=u+eorx=u−efor some unituand idempotenteinR. The ringRis said to be weakly clean if all of its elements are weakly clean. In this paper we obtain an element-wise characterization of abelian weakly clean rings. A relation between unit regular rings and weakly clean rings is also obtained.