نتایج جستجو برای: randic index general sum connectivity index

تعداد نتایج: 1209035  

2007
Mei Lu Jinwu Gao

In studying branching properties of alkanes, several numbering schemes for the edges of the associated hydrogen-suppressed graph were proposed based on the degrees of the end vertices of an edge [11]. To preserve rankings of certain molecules, some inequalities involving the weights of edges needed to be satisfied. Randić [11] stated that weighting all edges uv of the associated graph G by (d(u...

Journal: :AKCE International Journal of Graphs and Combinatorics 2020

Journal: :Bulletin of the Belgian Mathematical Society - Simon Stevin 2018

Journal: :The Art of Discrete and Applied Mathematics 2020

Journal: :Symmetry 2021

A connected graph G is said to be a cactus if any two cycles have at most one vertex in common. The multiplicative sum Zagreb index of the product degrees adjacent vertices G. In this paper, we introduce several transformations that are useful tools for study extremal properties index. Using these and symmetric structural representations some graphs, determine graphs having maximal with prescri...

Journal: :Discrete Applied Mathematics 2002

Journal: :Journal of High Energy Physics 2015

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