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arXiv · 2207.07344

Extensions of I-Reversible Rings

Vivek Bhabani Lama·Suhas B N·Susobhan Mazumdar·Raisa DSouza
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Abstract

A ring $R$ is said to be i-reversible if for every $a,b$ $\in$ $R$, $ab$ is a non-zero idempotent implies $ba$ is an idempotent. It is known that the rings $M_n(R)$ and $T_n(R)$ (the ring of all upper triangular matrices over $R$) are not i-reversible for $n \geq 3$. In this article, we provide a non-trivial i-reversible subring of $M_n(R)$ when $n \geq 3$ and $R$ has only trivial idempotents. We further provide a maximal i-reversible subring of $T_n(R)$ for each $n\geq 3$, if $R$ is a field. We then give conditions for i-reversibility of Trivial, Dorroh and Nagata extensions. Finally, we give some independent sufficient conditions for i-reversibility of polynomial rings, and more generally, of skew polynomial rings.

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BibTeXRIS

Vivek Bhabani Lama, Suhas B N, Susobhan Mazumdar, Raisa DSouza. 2022-07-15. Extensions of I-Reversible Rings. https://doi.org/10.1142/s0219498824500816

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