半径为2的图的hyper-Wiener指标(英文)The Hyper-Wiener Index of Graphs with Radius Two
何欢营,安新慧
摘要(Abstract):
连通图G的hyper-Wiener指标定义为WW(G)=12{u,v}V(G)(d(u,v)+d2(u,v)),其中d(u,v)表示G中u到v的距离.研究了半径为2的树的hyper-Wiener指标,并且给出了计算公式.刻画了阶数n=1+t+87t2的半径为2的具有最大hyper-Wiener指标的图,这里t是某些正整数.
关键词(KeyWords): hyper-Wiener指标;距离;半径
基金项目(Foundation): The research supported by the TianYuan Special Funds of NSFC(11126113)
作者(Author): 何欢营,安新慧
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