Some results on the incidence coloring number of a graph

被引:15
作者
Wu, Jiaojiao [1 ]
机构
[1] Natl Taiwan Univ, Dept Math, Taipei, Taiwan
关键词
Incidence coloring; The square of graphs; Cubic graphs; STAR ARBORICITY;
D O I
10.1016/j.disc.2008.10.027
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
This paper proves that if G is a cubic graph which has a Hamiltonian path or G is a bridgeless Cubic graph of large girth, then its incidence coloring number is at most 5. By relating the incidence coloring number of a graph G to the chromatic number of G(2), we present simple proofs of some known results, and characterize regular graphs G whose incidence coloring number equals Delta(G) + 1. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:3866 / 3870
页数:5
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