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首页> 外文期刊>Journal of algebra and its applications >The zero-divisor graph of a ring with involution
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The zero-divisor graph of a ring with involution

机译:带有阴部的零分配图

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摘要

For a *-ring A, we associate a simple undirected graph Gamma*(A) having all nonzero left zero-divisors of A as vertices and, two vertices x and y are adjacent if xy* = 0. In case of Artinian *-rings and Rickart *-rings, characterizations are obtained for those *-rings having Gamma*(A) a complete graph or a star graph, and sufficient conditions are obtained for G*(A) to be connected and also for Gamma*(A) to be disconnected. For a Rickart *-ring A, we characterize the girth of gr(Gamma*(A)) and prove a sort of Beck's conjecture.
机译:对于一个* -Ring A,我们将拥有AS顶点的所有非零左除数的简单无向图伽马*(a)关联,如果xy * = 0,则两个顶点x和y是相邻的。 戒指和rickart * -rings,对于具有伽马*(a)的那些* -rings,可以获得特征,并且可以为g *(a)连接的足够的条件,并且还为γ*(a) )断开连接。 对于rickart * -ring a,我们表征了gr(gamma *(a))的周长,并证明了一种贝克的猜想。

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