| 固定直径的树的Harary指数 |
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| 引用本文： | 肖金环,赵飚.固定直径的树的Harary指数[J].曲阜师范大学学报,2014(3):30-34. |
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| 作者姓名： | 肖金环 赵飚 |
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| 作者单位： | 新疆大学数学与系统科学学院; |
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| 摘 要： | 图G的Harary指数定义为图中所有点对的反距离之和.给出了固定直径的树的Harary指数的第二大值,并刻画了对应的极图.
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| 关 键 词： | Harary指数 树 直径 |
The Harary Index of Trees with Described Diameter |
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| XIAO Jin-huan,ZHAO Biao.The Harary Index of Trees with Described Diameter[J].Journal of Qufu Normal University(Natural Science),2014(3):30-34. |
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| Authors: | XIAO Jin-huan ZHAO Biao |
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| Institution: | (College of Mathematics and System Scienee,Xinjiang University,830046,Urumqi,Xinjiang,PRC) |
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| Abstract: | The Harary index of a graph Gis defined as the sum of reciprocals of distance between all pairs of vertices in a connected graph.In this paper,the second maximum Harary of the trees index among the trees with described diameter is determimed and all extremal trees are characterized. |
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| Keywords: | the Harary index tree diameter |
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