The total chromatic number of regular graphs of high degree
The total chromatic number of regular graphs of high degree作者机构:College of Mathematics and PhysicsChongqing UniversityChongqing 400044China
出 版 物:《Science China Mathematics》 (中国科学:数学(英文版))
年 卷 期:2009年第52卷第8期
页 面:1743-1759页
核心收录:
学科分类:07[理学] 070104[理学-应用数学] 0701[理学-数学]
主 题:total chromatic number total coloring total coloring conjecture 05C15
摘 要:The total chromatic number χT (G) of a graph G is the minimum number of colors needed to color the edges and the vertices of G so that incident or adjacent elements have distinct colors. We show that if G is a regular graph and d(G) ? 2 3 |V (G)|+ 23 6 , where d(G) denotes the degree of a vertex in G, then χT (G) ? d(G) + 2.