摘要
图G=(V,E)为简单连通图,dv表示顶点v的度。G的零阶广义Randi指数定义为Rα0(G)=∑v∈Vdvα,其中α为任意实数。本文研究直径不超过4的树关于零阶广义Randi指数的极图问题。
Let G=(V,E)be a simple connected graph,and dv be the degree of vertex v.The zeroth-order Randi index of G is defined as R0α(G)=∑v∈Vdαv,where α is an arbitrary real number.In this paper,the extremal graph problem of the zeroth-order general randi index of trees with diameter not more than 4 is investigated.
出处
《河南科技大学学报（自然科学版）》
CAS
2007年第3期80-82,共3页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(10471037)
湖南省教育厅基金项目(06C507)
