The second hyper-zagreb indices and coindices of disjunction and symmetric difference of graphs

Abdu Alameri; Mohammed Alsharafi; Hanan Ahmed

doi:10.33545/26646781.2019.v1.i1a.50

The second hyper-zagreb indices and coindices of disjunction and symmetric difference of graphs

Author(s):

Abdu Alameri, Mohammed Alsharafi and Hanan Ahmed

Abstract:

A topological index is a numerical descriptor of a molecule, based on a certain topological feature of the corresponding molecular graph. In this paper, we explore here some basic mathematical properties and present explicit formulas for the second Hyper-Zagreb coindex under graph operations (disjunction and symmetric difference).

DOI: 10.33545/26646781.2019.v1.i1a.50

Pages: 37-42 | 275 Views 57 Downloads

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How to cite this article:

Abdu Alameri, Mohammed Alsharafi and Hanan Ahmed. The second hyper-zagreb indices and coindices of disjunction and symmetric difference of graphs. Int. J. Adv. Chem. Res. 2019;1(1):37-42. DOI: 10.33545/26646781.2019.v1.i1a.50

Vol. 1, Issue 1, Part A (2019)

The second hyper-zagreb indices and coindices of disjunction and symmetric difference of graphs

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