Generalized inverses of a factorization in a ring with involution

Generalized inverses of a factorization in a ring with involution
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具有对合的环中因式分解的广义逆

DOI:
10.1016/j.laa.2015.01.025
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发表时间:
2015-05
影响因子:
1.1
通讯作者:
Chen Jianlong
Chen Jianlong
中科院分区:
数学3区
文献类型:
--
作者:
Zhu Huihui;Zhang Xiaoxiang;Chen Jianlong

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设R是一个对合角为f, p, a, q∈R的环。本文研究了paq具有{1,3}-逆(分别为{1,4}-逆)的充分必要条件。特别地,得到了paq的Moore-Penrose逆存在性的等价。作为应用,给出了(2,2,0)矩阵在R上的Moore-Penrose逆的存在性和表达式。
Let R be a ring with an involution⁎ and p, a, q∈ R. In this paper, we investigate the necessary and sufficient conditions for paq to have a {1, 3}-inverse (respectively,{1, 4}-inverse). In particular, the equivalences for the existence of the Moore–Penrose inverse of paq are obtained. As applications, the existence and expression of the Moore–Penrose inverse of a (2, 2, 0) matrix over R are given.
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