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arXiv 2503.20009math.RA
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完全中心本质环

Completely Centrally Essential Rings

Oleg Lyubimtsev, Askar Tuganbaev

AI总结:

本文定义并研究完全中心本质环,证明其半本原环为李幂零、诺特环为强李幂零且为PI环,并得出其经典分式环仍为完全中心本质,以及交换整环上的完全中心本质群环必为交换环。

摘要:

称环 $R$ 是中心本质的,若对其每个非零元素 $a$,存在非零中心元素 $x$ 和 $y$ 使得 $ax = y$。称环 $R$ 是完全中心本质的,若其所有商环都是中心本质环。证明了完全中心本质的半本原环是李幂零的;诺特完全中心本质环是强李幂零的(特别地,每个这样的环都是 $PI$-环)。每个完全中心本质环都有经典分式环,且该分式环是完全中心本质环。若 $R$ 是交换整环且 $G$ 是任意群,则任何完全中心本质的群环 $RG$ 都是交换的。

英文摘要:

A ring $R$ is said to be centrally essential if for every its non-zero element $a$, there exist non-zero central elements $x$ and $y$ with $ax = y$. A ring $R$ is said to be completely centrally essential if all its factor rings are centrally essential rings. It is proved that completely centrally essential semiprimary rings are Lie nilpotent; noetherian completely centrally essential rings are strongly Lie nilpotent (in particular, every such a ring is a $PI$-ring). Every completely centrally essential ring has the classical ring of fractions which is a completely centrally essential ring. If $R$ is a commutative domain and $G$ is an arbitrary group, then any completely centrally essential group ring $RG$ is commutative.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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