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反超图的笛卡儿积的上色数
The Upper Chromatic Number of the Cartesian Product of Co-Hypergraphs
【摘要】 讨论反超图的笛卡儿积的着色理论 ,求出了满足一定条件的反超图的笛卡儿积的上色数 .
【Abstract】 The notion of mixed hypergraphs was introduced by Vitaly I.Voloshin in 1995,it is a generalization of the notion of hypergraphs.The lower chromatic number and the upper chromatic number of a mixed hypergraph are both importment.This paper discusses the upper chromatic number of the Cartesian product of co-hypergraphs.
【关键词】 反超图;
严格着色;
上色数;
笛卡儿积;
【Key words】 Co-hypergraph; Strict coloring; Upper chromatic number; Cartesian product;
【Key words】 Co-hypergraph; Strict coloring; Upper chromatic number; Cartesian product;
【基金】 国家自然科学基金 (198310 80 ,60 172 0 0 3);山东省自然科学基金 (2 2 0 0A0 2 )资助课题
- 【文献出处】 应用数学 ,Mathematica Applicata , 编辑部邮箱 ,2002年S1期
- 【分类号】O157.5
- 【下载频次】30