弱$r$-Clean环 |
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作者姓名: | 高汉鹏 殷晓斌 |
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作者单位: | 安徽师范大学数学计算机科学学院, 安徽 芜湖 241000,安徽师范大学数学计算机科学学院, 安徽 芜湖 241000 |
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基金项目: | 国家自然科学基金(Grant Nos.11401009; 11326062). |
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摘 要: | As generalization of r-clean rings and weakly clean rings, we define a ring R is weakly r-clean if for any a∈R there exist an idempotent e and a regular element r such that a = r + e or a = r-e. Some properties and examples of weakly r-clean rings are given. Furthermore, we prove the weakly clean rings and weakly r-clean rings are equivalent for abelian rings.
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关 键 词: | $r$-clean环 弱clean环 弱$r$-clean环 正则环 |
收稿时间: | 2016-10-13 |
修稿时间: | 2017-05-17 |
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