J4 ›› 2011, Vol. 49 ›› Issue (01): 68-70.

• 数学 • 上一篇    下一篇

 图Kcr∨Ks的邻点可区别全色数

陈祥恩, 马彦荣   

  1. 西北师范大学 数学与信息科学学院, 兰州 730070
  • 收稿日期:2010-01-04 出版日期:2011-01-26 发布日期:2011-02-19
  • 通讯作者: 陈祥恩 E-mail:chenxe@nwnu.edu.cn

AdjacentVertexDistinguishing Total Chromatic Number of Kcr∨Ks

CHEN Xiangen, MA Yanrong   

  1. College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China
  • Received:2010-01-04 Online:2011-01-26 Published:2011-02-19
  • Contact: CHEN Xiangen E-mail:chenxe@nwnu.edu.cn

摘要:

利用组合分析方法研究r阶空图与s阶完全图的联图Kcr∨Ks的邻点可区别全色数问题, 得到了当r+s为奇数且s>r2+2r-1时, χat(Kcr∨Ks)=r+s+2, 其中χat(G)表示图G的邻点可区别全色数.

关键词: 邻点可区别全染色, 邻点可区别全色数, 联图

Abstract:

The adjacentvertexdistinguishing total chromatic number of Kcr∨Ks, the join of empty graph of order r and complete graph of order s, was discussed via the method of combinatory analysis. One important result χat(Kcr∨Ks)=r+s+2 holds when r+s is an odd number and s>r2+2r-1, where χat(G)  represents the adjacent\|vertex\|distinguishing total chromatic number.

Key words: adjacentvertexdistinguishing total coloring, adjacentvertexdistinguishing total chromatic number, join of graphs

中图分类号: 

  • O157.5