Eccentric harmonic index of a graph
Sign Up to like & getrecommendations! Published in 2019 at "Arab Journal of Basic and Applied Sciences"
DOI: 10.1080/25765299.2019.1688914
Abstract: Abstract In this paper, we introduce the eccentric harmonic index of a graph G, so that it is the sum of the terms for the edges where ei is the eccentricity of the ith vertex… read more here.
Keywords: eccentric harmonic; index; index graph; harmonic index ... See more keywords
Harmonic Index and Harmonic Polynomial on Graph Operations
Sign Up to like & getrecommendations! Published in 2018 at "Symmetry"
DOI: 10.3390/sym10100456
Abstract: Some years ago, the harmonic polynomial was introduced to study the harmonic topological index. Here, using this polynomial, we obtain several properties of the harmonic index of many classical symmetric operations of graphs: Cartesian product,… read more here.
Keywords: harmonic polynomial; index; harmonic index; product ... See more keywords