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完全图及完全二部图的点可区别Ⅳ-全染色 被引量:2

Vertex-Distinguishing IV- Total Colorings of Complete Graph and Bipartite Complete Graph
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摘要 设G是简单图,图G的一个k-点可区别Ⅵ-全染色(简记为k-VDIVT染色),f是指一个从V(G)∪E(G)到{1,2,…,k}的映射,满足:()uv,uw∈E(G),v≠w,有,f(uv)≠f(uw);()u,V∈V(G),u≠v,有C(u)≠C(v),其中C(u)={f(u)}∪{f(uv)|uv∈E(G)}.数min{k|G有一个k-VDIVT染色}称为图G的点可区别Ⅵ-全色数,记为x_(vt)^(iv)(G).讨论了完全图K_n及完全二部图K_(m,n)的VDIVT色数. Let G be a simple graph.An IV-total coloring f of G refers to a coloring of the vertices and edges of G so that no two adjacent edges receive the same color.Let C(u) be the set of colors of vertex u and edges incident to u under f.For anⅣ-total coloring f of G using k colors,if C(u)≠C(v) for any two different vertices u and v of V(G),then f is called a k-vertex-distinguishingⅣ-total-coloring of G,or a k-VDIVT coloring of G for short.The minimum number of colors required for a VDIVT coloring of.G is denoted by x_(vt)^(iv)(G),it is called the VDIVT chromatic number of G.In this paper,we have get the VDIVT chromatic numbers of complete graph K_n and complete bipartite graph K_(m,n)
作者 王国兴
出处 《数学的实践与认识》 CSCD 北大核心 2012年第6期233-236,共4页 Mathematics in Practice and Theory
基金 国家自然科学基金(61163037 61163054) 兰州商学院2011年度重点科研项目(LZ201121)
关键词 Ⅳ-全染色 点可区别Ⅳ-全染色 点可区别Ⅳ-全色数 graphs IV-total coloring vertex-distinguishing IV-total coloring vertex-distin guishing IV-total chromatic number
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参考文献3

  • 1Xiang'en Chen. Asymptotic behaviour of the vertex-distinguishing total chromatic numbers of n-cube[J]. Journal of Northwest Normal University (Natural Science), 2005, 41(5): 1-3.
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  • 3Burris A C and Schelp R H. Vertex-distinguishing proper edge-colorings[J]. J of Graph Theory, 1997, 26(2): 73-82.

同被引文献14

  • 1Chen Xiang'en. Asymptotic behaviour of the vertex-distinguishing total, chromatic numbers of n-cube[J]. Journal of Northwest Normal University (Natural Science), 2005, 41(5): 1-3.
  • 2Zhang Zhongfu, Qiu Pengxiang, Xu Baogen, et al, vertex-distinguishing total colorings of graphs[J]. Ars Combinatoria, 2008(87): 33-45. '.
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