首页 | 本学科首页   官方微博 | 高级检索  
     检索      

图的邻点可区分染色猜想成立的两个充分条件
引用本文:李倩倩,孙磊.图的邻点可区分染色猜想成立的两个充分条件[J].山东科学,2010,23(2):11-13.
作者姓名:李倩倩  孙磊
作者单位:山东师范大学数学科学学院,山东,济南,250014
摘    要:简单连通图G的邻点可区分全染色(邻强边染色)是图G的一个正常全(边)染色,并且使得任意两个相邻的点u,v满足C(u)≠C(v),其中C(u)={f(u)}∪{f(uw)|uw∈E(G),w∈V(G)}(C(u)={f(uw)|uw∈E(G),w∈V(G)}).满足图G有一个邻点可区分全染色(邻强边染色)所用的最少颜色数记为χat(G)(χ′as(G)).图G的最大度记为Δ(G).本文给出了χat(G)=Δ(G)+3的一个充分条件和χ′as(G)=Δ(G)+2的一个充分条件.

关 键 词:  邻点可区分全染色  邻强边染色  

Two Sufficient Conditions of Adjacent Vertex Distinguishing Coloring Conjecture Affirms
LI Qian-qian,SUN Lei.Two Sufficient Conditions of Adjacent Vertex Distinguishing Coloring Conjecture Affirms[J].Shandong Science,2010,23(2):11-13.
Authors:LI Qian-qian  SUN Lei
Institution:LI Qian-qian,SUN Lei*(School of Mathematics,Shandong Normal University,Jinan 250014,China)
Abstract:An adjacent vertex distinguishing total-coloring (an adjacent strong edge coloring)of a simple connected graph G is a normal total-coloring (edge coloring )of G, which satisfies C(u) ≠C(v) for any two adjacent vertices u and v,C(u) = {f(u) }{∪ {f(uw) |uw ∈ E(G), w ∈ V(G)} ( C(u) = {f(uw) | uw ∈ E(G) ,w ∈ V(G) } ). The minimum color number required for an adjacent vertex distinguishing total-coloring (an adjacent strong edge coloring)of G is denoted by as χat(G) (χ'as(G)). The maximum degree of G is denoted by as △ (G). This paper presents a sufficient condition for χat(G)=△(G)+3 and a sufficient condition for χ'as(G)=△(G)+2.
Keywords:graph  adjacent vertex distinguishing total-coloring  adjacent strong edge coloring  
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《山东科学》浏览原始摘要信息
点击此处可从《山东科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号