摘要
单图G的D(β)-点可区别正常全染色是指图的距离不超过β的任意两点的色集合都不同的正常全染色,所谓两点u,v间的距离是指这两个点之间的最短路的长,记为d(u,v).D(β)-点可区别正常全色数是对图G进行D(β)-点可区别正常全染所需最小色数.给出了当β=1,2时广义Mycielski图Mn(P3m)的D(β)-点可区别正常全色数.
Let G be a simple graph,for any u,y∈V(G),d(u,v) denotes the distance between u and v.A proper total coloring of a graph G is called a D(β)-vertex distinguishing proper total coloring if for any two distinct vertices u,v∈V(G) with d(u,v)≤β,we have S(u)≠S(v).The D(β)-vertex distinguishing proper total chromatic number is the minimum number of colors required for an D(β)-vertex distinguishing proper total coloring of the graph G.In this paper,we obtained the D(β)-vertex distinguishing proper total chromatic number of generalized mycielski graph Mn(P^3m).
出处
《曲阜师范大学学报(自然科学版)》
CAS
2013年第1期18-22,共5页
Journal of Qufu Normal University(Natural Science)
基金
国家自然科学基金资助课题(61163037
61163054)
西北师范大学"知识与科技创新工程"项目(nwnu-kjcxgc-03-61)