A class of J-quasipolar rings

	A class of J-quasipolar rings
Journal of Algebra and Related Topics
مقاله 1، دوره 3، شماره 2، اسفند 2015، صفحه 1-15 اصل مقاله (296.88 K)
نوع مقاله: Research Paper
نویسندگان
S. Halicioglu^* ¹؛ M. B. Calci¹؛ A. Harmanci²
¹Ankara University
²Hacettepe University
چکیده
In this paper, we introduce a class of $J$-quasipolar rings. Let $R$ be a ring with identity. An element $a$ of a ring $R$ is called {\it weakly $J$-quasipolar} if there exists $p^2 = p\in comm^2(a)$ such that $a + p$ or $a-p$ are contained in $J(R)$ and the ring $R$ is called {\it weakly $J$-quasipolar} if every element of $R$ is weakly $J$-quasipolar. We give many characterizations and investigate general properties of weakly $J$-quasipolar rings. If $R$ is a weakly $J$-quasipolar ring, then we show that (1) $R/J(R)$ is weakly $J$-quasipolar, (2) $R/J(R)$ is commutative, (3) $R/J(R)$ is reduced. We use weakly $J$-quasipolar rings to obtain more results for $J$-quasipolar rings. We prove that the class of weakly $J$-quasipolar rings lies between the class of $J$-quasipolar rings and the class of quasipolar rings. Among others it is shown that a ring $R$ is abelian weakly $J$-quasipolar if and only if $R$ is uniquely clean.
کلیدواژه‌ها
Quasipolar ring؛ $J$-quasipolar ring؛ weakly $J$-quasipolar ring؛ uniquely clean ring

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