Zero divisor graph;
Clique number;
Chromatic number;
r-partite graph;
Semi-ideal;
Ideal;
Prime ideal;
Semiprime ideal;
IDEALS;
D O I:
10.1016/j.dam.2012.12.019
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this paper, we introduce the generalized ideal based zero divisor graph of a poset P, denoted by <(G(I)(P))over cap>. A representation theorem is obtained for generalized zero divisor graphs. It is proved that a graph is complete r-partite with r >= 2 if and only if it is a generalized zero divisor graph of a poset. As a consequence of this result, we prove a form of a Beck's Conjecture for generalized zero divisor graphs of a poset. Further, it is proved that a generalized zero divisor graph <(G({0})(P))over cap> of a section semi-complemented poset P with respect to the ideal (0] is a complete graph. (C) 2013 Elsevier By. All rights reserved.
机构:
Hannam Univ, Dept Math, Coll Life Sci & Nano Technol, Daejeon 34430, South KoreaHannam Univ, Dept Math, Coll Life Sci & Nano Technol, Daejeon 34430, South Korea
Park, Min Ji
Kim, Eun Sup
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h-index: 0
机构:
Kyungpook Natl Univ, Dept Math, Coll Nat Sci, Daegu 41566, South KoreaHannam Univ, Dept Math, Coll Life Sci & Nano Technol, Daejeon 34430, South Korea
Kim, Eun Sup
Lim, Jung Wook
论文数: 0引用数: 0
h-index: 0
机构:
Kyungpook Natl Univ, Dept Math, Coll Nat Sci, Daegu 41566, South KoreaHannam Univ, Dept Math, Coll Life Sci & Nano Technol, Daejeon 34430, South Korea