六角链的Harary指标

摘要

The Harary index is defined as the sum of reciprocals of distances between all pairs of vertices of a connected graph.In this paper,the extremal (maximal and minimal)hexagonal chains with respect to Harary index are obtained.%图G的 Harary指标是指图G中所有点对的距离的倒数之和。该文主要研究了六角链中具有最大和最小 Harary指标的图的结构。