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关于联图P_1VP_n的k-强优美性
引用本文:陈淑贞,周俊梅.关于联图P_1VP_n的k-强优美性[J].数学杂志,2010,30(2).
作者姓名:陈淑贞  周俊梅
作者单位:海南师范大学数学与统计学院,海南,海口,571158
基金项目:海南省教育厅科研基金,海南师范大学青年教师科研基金 
摘    要:本文研究了联图P_1VP_n的k-强优美性问题.利用K-强优美图的定义,获得了联图P_1VP_n是k-强优美图的必要条件,还得到了当n:2k-1时联图P_1VP_n是k-强优美图,亦是k-优美图,及当n≥3时联图P_1VP_n是2-强优美图,也是2-优美图的结果,推广了联图P_1VP_n是优美图的结果.

关 键 词:联图  优美标号  k-强优荚图  k-优美图

k-STRONG GRACEFULNESS OF JOIN GRAPH P_1VP_n
CHEN Shu-zhen,ZHOU Jun-mei.k-STRONG GRACEFULNESS OF JOIN GRAPH P_1VP_n[J].Journal of Mathematics,2010,30(2).
Authors:CHEN Shu-zhen  ZHOU Jun-mei
Institution:CHEN Shu-zhen,ZHOU Jun-mei(School of Mathematics , Statistics,Hainan Normal University,Haikou 571158,China)
Abstract:In this article, we study the k-strong gracefulness for join graph P_1VP_n. By using the definition of k-strong graceful graph, we obtain the necessary conditions for a join graph P_1VP_n to be an k-strong graceful graph. It is proved that, for n=2k-1, a join graph P_1VP_n is an k-strong graceful graph and is also k graceful graph, and for n≥3, a join graph P_1VP_n is a 2-strong graceful graph and also a 2-graceful graph. These extend the result of a join graph P1VPn to be a graceful graph.
Keywords:join graph  graceful label  k-strong graceful graph  k-graceful graph
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