SOME VERTEX-DEGREE-BASED TOPOLOGICAL INDICES UNDER EDGE CORONA PRODUCT

Authors

  • I. Rezaee Abdolhosseinzadeh Ferdowsi University of Mashhad - Department of Applied Mathematics
  • F. Rahbarnia Ferdowsi University of Mashhad - Department of Applied Mathematics
  • M. Tavakoli Ferdowsi University of Mashhad - Department of Applied Mathematics
  • A. R. Ashrafi University of Kashan - Department of Pure Mathematics

Keywords:

Edge corona product, Randić index, harmonic index, atom-bond connectivity index

Abstract

A topological index is called vertex-degree-based if it can be defined by vertex degrees.  The harmonic, atom-bond connectivity and Randić indices are three important examples of such topological indices.  The aim of this paper is to find lower and upper bounds for Randić, harmonic and atom-bond connectivity indices of edge corona product of graphs.  Some closed formulas are obtained when the factors are regular graphs.

Cover of n°38 Italian Journal of Pure and Applied Mathematics

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Published

2017-07-31

How to Cite

Abdolhosseinzadeh, I. R., Rahbarnia, F., Tavakoli, M., & Ashrafi, A. R. (2017). SOME VERTEX-DEGREE-BASED TOPOLOGICAL INDICES UNDER EDGE CORONA PRODUCT. Italian Journal of Pure and Applied Mathematics, 37, 81–91. Retrieved from https://journals.uniurb.it/index.php/ijpam/article/view/6827

Issue

N°38 - July 2017

Section

Articoli - Forum Editrice

License

Copyright (c) 2017 I. Rezaee Abdolhosseinzadeh, F. Rahbarnia, M. Tavakoli, A. R. Ashrafi

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

L'opera è pubblicata sotto  Licenza Creative Commons Attribuzione 4.0 Internazionale (CC-BY)

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