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.
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Title
Counter examples to a conjecture concerning harmonic index
Creators - without role
Akbar Ali - University of Management and Technology
Publication Details
Asian-European journal of mathematics, Vol.11(3), p.1850035