摘要
运用Discharging方法,证明了最大度为6且不含5-圈和相邻4-圈的简单平面图是7-全可染的.所得结果改进了现有文献的相关结果.
By using the discharging method,it was proved that plane graphs with maximum degree 6 and without 5-cycles and adjacent 4-cycles were 7-totally-colorable.This improved the known results in literatures.
出处
《浙江师范大学学报(自然科学版)》
CAS
2011年第3期272-276,共5页
Journal of Zhejiang Normal University:Natural Sciences
基金
浙江省自然科学基金资助项目(Y6090699)
关键词
平面图
全染色
最大度
5-圈
相邻4-圈
plane graph
total coloring
maximum degree
5-cycles
adjacent 4-cycles