The one-sided inverse along two elements in rings

The one-sided inverse along two elements in rings
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沿环中两个元素的单边逆

DOI:
10.1080/03081087.2019.1679073
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发表时间:
2019-10
影响因子:
1.1
通讯作者:
Mosic Dijana
Mosic Dijana
中科院分区:
数学3区
文献类型:
--
作者:
Wang Long;Mosic Dijana

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做个戒指。本文证明了:若A是左可逆的且CAB是正则的,则A至少有一个正则左逆。并利用cab的内逆给出了a的-逆的表达式。此外,根据cab的正则性,引入了强左(或右)逆.证明了当a是左可逆的时,a是强左可逆的,且左可逆性与右可逆性是一致的.作为应用,我们考虑了单边核逆何时是核可逆的。证明了强π-正则环的左核可逆性与右核可逆性是一致的。
Let be a ring and . In this paper, it is shown that if a is left -invertible and cab is regular, then a has at least one regular left -inverse. And the expression of the -inverse of a is given in terms of the inner inverse of cab. Moreover, the strongly left (or right) -inverse is introduced in terms of the regularity of cab. It is shown when , a is left -invertible implies that a is strongly left -invertible, and left -invertibility coincides with right -invertibility. As applications, we consider when the one-sided core inverse is core invertible. It is shown that left core invertibility coincides with right core invertibility in every strongly π-regular ring.
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