A class of outer generalized inverses and a note on Drazin's finiteness conditions in rings and semigroups

被引:0
|
作者
Wu, Cang [1 ]
Chen, Jianlong [1 ,2 ]
机构
[1] Southeast Univ, Sch Math, Nanjing, Peoples R China
[2] Southeast Univ, Sch Math, Nanjing 210096, Peoples R China
基金
中国国家自然科学基金;
关键词
(b; c)-inverse; finiteness condition; outer inverse; spectral {1,2,3}-inverse;
D O I
10.1080/00927872.2023.2226214
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We introduce a class of outer generalized inverses in rings and semigroups, which affords a characterization of Greville's spectral {1,2,3}-inverses of complex matrices. Moreover, it is proved that Drazin's intermediate finiteness and weak finiteness conditions for semigroups are the same notion.
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页码:5167 / 5174
页数:8
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