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arXiv · 2205.11909

On forward-order law for core inverse in rings

Amit Kumar·Debasisha Mishra
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Abstract

If $a$ and $b$ are a pair of invertible elements, then $ab$ is also invertible and the inverse of the product $ab$ satisfying $$(ab)^{-1}=a^{-1}b^{-1}$$ is known as the {\it forward-order law}. This article establishes a few sufficient conditions of the forward-order law for the core inverse of elements in rings with involution. It also presents the forward-order law for the weighted core inverse and the triple forward-order law for the core inverse. Additionally, we discuss the hybrid forward-order law among the Moore-Penrose inverse, the group inverse, and the core inverse.

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Amit Kumar, Debasisha Mishra. 2022-05-24. On forward-order law for core inverse in rings. https://doi.org/10.1007/s00010-022-00933-y

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