On the entire coloring conjecture

被引:22
作者
Sanders, DP [1 ]
Zhao, Y [1 ]
机构
[1] Univ Cent Florida, Dept Math, Orlando, FL 32816 USA
来源
CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES | 2000年 / 43卷 / 01期
关键词
D O I
10.4153/CMB-2000-017-7
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The Four Color Theorem says that the faces (or vertices) of a plane graph may be colored with four colors. Vizing's Theorem says that the edges of a graph with maximum degree Delta may be colored with Delta + 1 colors. In 1972, Kronk and Mitchem conjectured that the vertices, edges, and faces of a plane graph may be simultaneously colored with Delta + 4 colors. In this article, we give a simple proof that the conjecture is true if Delta greater than or equal to 6.
引用
收藏
页码:108 / 114
页数:7
相关论文
共 21 条
[1]   EVERY PLANAR MAP IS 4 COLORABLE [J].
APPEL, K ;
HAKEN, W .
BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1976, 82 (05) :711-712
[2]  
Borodin O. V., 1984, Metody Diskret. Analiz., V108, P12
[3]  
Borodin OV, 1996, J GRAPH THEOR, V23, P233, DOI 10.1002/(SICI)1097-0118(199611)23:3<233::AID-JGT3>3.0.CO
[4]  
2-T
[5]  
BORODIN OV, 1989, J REINE ANGEW MATH, V394, P180
[6]  
FIAMCIK J, 1971, MAT CAS, V21, P9
[7]  
JENSEN TR, 1995, GRAPH COLORNG PROBLE, P47
[8]  
JUCOVIC E, 1969, MAT CAS, V19, P225
[9]  
Kronk H. V., 1973, Discrete Mathematics, V5, P253, DOI 10.1016/0012-365X(73)90142-8
[10]   ENTIRE CHROMATIC NUMBER OF A NORMAL GRAPH IS AT MOST 7 [J].
KRONK, HV ;
MITCHEM, J .
BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 78 (05) :799-&