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This paper introduces an ideal-boyed zero-divisor graph of non-commutative rings,denoted ΓI(R).ΓI(R) is a directed graph.The properties and possible structures of the graph is studied. 相似文献
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本文利用矩阵行的初等变换 ,采用递推的方法 ,求出了有限域 k上 n次一般线性群 GLn(k)和 n次特殊线性群 SLn(k)的阶 . 相似文献
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令(R N M S)是一个具有零迹理想的形式矩阵环,σ是K的一个满足σ(E11)=E11,σ(E22)=E22的自同构.本文确定了K的σ-双导子和σ-交换映射的一般形式,证明了在一定条件下K的每个σ-双导子都可以表示成一个外σ-双导子与一个内σ-双导子的和.此外,本文给出了K的任意σ-双导子(σ-交换映射)是内σ-双导子(真σ-交换映射)的一个充分条件. 相似文献
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In this paper, a new class of rings, called FIC rings, is introduced for studying quasi-zero-divisor graphs of rings. Let R be a ring. The quasi-zero-divisor graph of R, denoted by Γ_*(R), is a directed graph defined on its nonzero quasi-zero-divisors, where there is an arc from a vertex x to another vertex y if and only if x Ry = 0. We show that the following three conditions on an FIC ring R are equivalent:(1) χ(R) is finite;(2) ω(R) is finite;(3)Nil_*R is finite where Nil_*R equals the finite intersection of prime ideals. Furthermore, we also completely determine the connectedness, the diameter and the girth of Γ_*(R). 相似文献