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图的D(β)-点可区别边染色及其概率方法

D(β)-Vertex-distinguishing Edge-Coloring of Graphs and the Probabilistic Method

【作者】 田京京

【导师】 刘信生;

【作者基本信息】 西北师范大学 , 应用数学, 2007, 硕士

【摘要】 张忠辅等人在[49]提出了图的D(β)-点可区别边染色的概念,本文通过概率方法和具体构造染色的方法研究了D(β)-点可区别的边染色。本文有四部分构成。第一部分主要是引如一些在本文所需要的基本概念与预备知识。第二部分讨论了D(β)-点可区别边染色的性质,给出了路和圈的D(3)-点可区别边色数,并归纳总结Pn,Cn,Sn,Kn,Fn,Wn的D(β)-点可区别边色数。第三部分通过具体构造染色的方法讨论并给出了联图Sm∨Pn∨Pn,Fm∨Pn的D(β)-点可区别的边色数。第四部分通过具体构造染色的方法讨论并给出了β=1,2,3时五类冠图Cm·Pn,Cm·Sn,Cm·Cn,Cm·Fn,Cm·Wn的D(β)点可区别边色数。第五部分先应用Lovasz局部引理的一般形式,讨论并得到了对最大度为d的简单图G,有X’2-vd(G)≤32d2,d>4,X’3-vd(G)≤8d5/2,d≥6.以及β≥4,d≥4时,D(β)-点可区别的边色数的上界。即(?),然后,用得到了D(2)-点可区别的边色数的另一个上界,有(?),则(?)。

【Abstract】 In 2006,Zhang Zhongfu present a new concept of the D(β)-vertex-distinguishing proper edge-coloring and conjecture,see[8].In this pa-per,we has been studied D(β)-vertex-distinguishing proper edge-coloring by probabilistic and giving colorings of a graph.The paper consists of five part.In the first part,we introduce some fundamental concepts that often used in the paper.In the second part,we discuss the properties of D(β)-vertex-distinguishing proper edge-coloring and,we has been obtained X’3-vd(Pn) and X’3-vd(Cn),by induction we has gotten the D(β)-vertex-distinguishing proper edge-coloring chromatic number of Pn,Sn,Cn,Kn,Fn,WnIn the third part,we have discussed and obtained the D(β)-vertex-distinguishing proper edge-coloring chromatic number of Sm∨Pn∨Pn,Fm∨Pn with giving coloring of a graph.In the fourth part,we have discussed and obtained the D(β)-vertex-distinguishing proper edge-coloring chromatic number of Cm·Pn,Cm·Sn,Cm·Cn,Cm·Fn,Cm·Wn with giving coloring of a graph,whenβ=1,2,3.In the last part,With applying the general form of the Lovász lo-cal lemma,we have discussed and obtained that X’2-vd(G)≤32d2,d≥4,X’3-vd(G)≤8d5/2,d≥6 and whenβ≥4,d≥4,X’β-vd(G)≤2(?)for any simple graph G with maximum degree d.we has gotten another upper bounds for D(2)-vertex-distinguishing proper edge-coloring chromatic number X’2-vd(G)≤△+1+(?)for the simple graph with maximum degree△≥162 ln 6,minimum degreeδ≥16(?) With applying the general form of the Lovász local lemma by another method

  • 【分类号】O157.5
  • 【被引频次】2
  • 【下载频次】105
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