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关于双圈图的Wiener指数

On the Wiener Index of Bicyclic Graphs
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摘要 一个连通图G的W iener指数定义为图G中所有点对的距离之和,本文主要研究双圈图去掉一条割边后其W iener指数的下界问题,并刻画了达到下界的极值图。 The Wiener index W(G) of a graph G is defined as the sum of distances over all pairs of vertices.Let G be a bicyclic graph.In this paper,we give a lower bound for the wiener index of graph G-e respectively.Moreover,all extreme-value graphs which attain the lower boundary are characterized.
作者 邢抱花
出处 《安庆师范学院学报(自然科学版)》 2011年第3期31-34,共4页 Journal of Anqing Teachers College(Natural Science Edition)
基金 安徽省高校省级自然科学研究项目(KJ2011Z236)资助
关键词 双圈图 割边 WIENER指数 bicyclic cut edge Wiener index
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参考文献6

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