Planar graphs of maximum degree six without 7-cycles are class one
被引:0
|
作者:
Huang, Danjun
论文数: 0引用数: 0
h-index: 0
机构:
Zhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R ChinaZhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R China
Huang, Danjun
[1
]
Wang, Weifan
论文数: 0引用数: 0
h-index: 0
机构:
Zhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R ChinaZhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R China
Wang, Weifan
[1
]
机构:
[1] Zhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R China
来源:
ELECTRONIC JOURNAL OF COMBINATORICS
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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.