摘要
对非连通图的优美性进行了研究,给出了几类非连通的并图,得出了如下结论:对任意正整数m,n,设G2n是任一边数为2n的优美图,当1≤n≤m时,非连通图Kn,m∪G2n是优美图;对任意正整数m,n,t,当1≤n≤m,且n≤t时,、非连通图Kn,m∪(C3∨Kt)和Kn,m∪(P3∨Kt)是优美图。
Gracefulness of non-connected graph was studied and types of non-connected union graphs were given.The conclusions were obtained as:For random positive integer m,n,assuming G2n was a graceful graph for edges of 2n,as for 1≤n≤m,non-connected graph Kn,m∪G2n was a graceful graph;for random positive integer m,n,t,as for 1≤n≤m,and n≤t,non-connected graph Kn,m∪(C3∨Kt-) and Kn,m∪(P3∨Kt-) were graceful graphs.
出处
《中国传媒大学学报(自然科学版)》
2011年第4期74-79,共6页
Journal of Communication University of China:Science and Technology
基金
国家自然科学基金资助项目(19801016
10261003)
关键词
图
优美图
优美标号
非连通图
graph
graceful graphs
graceful grade
unconnected graph