TY - JOUR T1 - Ore Extensions over Weakly 2-Primal Rings AU - Wang , Yao AU - Jiang , Meimei AU - Ren , Yanli JO - Communications in Mathematical Research VL - 1 SP - 70 EP - 82 PY - 2021 DA - 2021/03 SN - 32 DO - http://doi.org/10.13447/j.1674-5647.2016.01.05 UR - https://global-sci.org/intro/article_detail/cmr/18664.html KW - $(α, δ)$-compatible ring, weakly 2-primal ring, weakly semicommutative ring, nil-semicommutative ring, Ore extension. AB -
A weakly 2-primal ring is a common generalization of a semicommutative ring, a 2-primal ring and a locally 2-primal ring. In this paper, we investigate Ore extensions over weakly 2-primal rings. Let $α$ be an endomorphism and $δ$ an $α$-derivation of a ring $R$. We prove that (1) If $R$ is an $(α, δ)$-compatible and weakly 2-primal ring, then $R[x; α, δ]$ is weakly semicommutative; (2) If $R$ is $(α, δ)$-compatible, then $R$ is weakly 2-primal if and only if $R[x; α, δ]$ is weakly 2-primal.