摘要
根据无爪图及其线图的定义,发现无爪图线图的顶点数P与边数q满足q≤[(p2)/4.]
A graph in this paper is said to be claw-free if it does not K1,3. The line graph of claw-free graphs does not contain triangle,then q〈 [ p2/4 ] (p = V(L(G) ) ,q = E(L(G) ) ).
出处
《青海师专学报》
2007年第5期23-24,共2页
Journal of Qinghai Junior Teachers' College
关键词
无爪图
线图
二部图
哈密顿指数
claw - free graph
line graph
bipartite graph
hamiltonian index