The harmonic index of subdivision graphs
The harmonic index of a graph $G$ is defined as the sum of the weights $frac{2}{deg_G(u)+deg_G(v)}$ of all edges $uv$ of $G$, where $deg_G(u)$ denotes the degree of a vertex $u$ in $G$. In this paper, we study the harmonic index of subdivision graphs, $t$-subdivision graphs and also, ...
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Format: | Article |
Language: | English |
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University of Isfahan
2017-12-01
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Series: | Transactions on Combinatorics |
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Online Access: | http://toc.ui.ac.ir/article_21471_6d4574ac2fe03052a0872fb991c96309.pdf |