Planar graphs of maximum degree six without 7-cycles are class one

被引:0
|
作者
Huang, Danjun [1 ]
Wang, Weifan [1 ]
机构
[1] Zhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R China
来源
ELECTRONIC JOURNAL OF COMBINATORICS | 2012年 / 19卷 / 03期
关键词
Planar graph; edge coloring; class one; cycle; CLASS-I;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
It is conjectured by Vizing (1965) that every planar graphs graph G with maximum degree 6 <= Delta <= 7 is class one. The case Delta = 7 was confirmed independently by Sanders and Zhao (2001), and by Zhang (2000). In this paper, we prove that every planar graph G with Delta = 6 and without 7-cycles is class one.
引用
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页数:13
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