Counter examples to a conjecture concerning harmonic index

被引:6
作者
Ali, Akbar [1 ]
机构
[1] Univ Management & Technol, Dept Math, Sialkot, Pakistan
关键词
Topological index; harmonic index; minimum vertex degree;
D O I
10.1142/S1793557118500353
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A recently proposed conjecture by Cheng and Wang [A lower bound for the harmonic index of a graph with minimum degree at least three, Filomat 30(8) (2016) 2249-2260] about the harmonic index is disproved.
引用
收藏
页数:3
相关论文
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