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Some non-chromatic rings

 

作者: S.M. Bhatwadekar,   Mahesh N. Dumaldar,   Pramod K. Sharma,  

 

期刊: Communications in Algebra  (Taylor Available online 1998)
卷期: Volume 26, issue 2  

页码: 477-505

 

ISSN:0092-7872

 

年代: 1998

 

DOI:10.1080/00927879808826143

 

出版商: Gordon and Breach Science Publishers Ltd.

 

数据来源: Taylor

 

摘要:

LetRbe a commutative ring with identity. ConsiderRas a simple graph with vertices elements ofRwhere any two distinct elements x, y ϵ R are adjacent if and only if xy = 0. Beck [2] conjectured that ℵ(R) =c1(R), for all colorings R. Anderson and Naseer [1] provided a counter example to the conjecture i.e., gave an example of a non-chromatic ring. This paper generalizes the example and gives a large class of non-chromatic rings [Theorem 1.1]• A detailed analysis of the graph of these rings is also provided.

 

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