Some results on harmonic index of root square mean graphs

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DOI:

https://doi.org/10.26637/MJM0804/0163

Abstract

The Harmonic index \(H(G)\) of a graph \(G\) is defined as the sum of weights \(\frac{2}{d(u)+d(v)}\) of all edges \(u v\) of \(G\), where \(d(u)\) denotes the degree of a vertex \(u\) in \(G\). In this paper, we introduce harmonic index of some root square mean graphs.

Keywords:

Root square mean graphs, Harmonic index, Crown, Dragon, Kite

Mathematics Subject Classification:

Mathematics
  • S.S. Sandhya Department of Mathematics, Sree Ayyappa College for Women, Chunkankadai, Kanyakumari District, Tamil Nadu, India. Affiliated to Manonmaniam Sundaranar University, Abishekapatti-Tirunelveli-627012.
  • H. Aswathy Department of Mathematics, Sree Ayyappa College for Women, Chunkankadai, Kanyakumari District, Tamil Nadu, India. Affiliated to Manonmaniam Sundaranar University, Abishekapatti-Tirunelveli-627012.
  • Pages: 2277-2281
  • Date Published: 23-11-2020
  • Vol. 8 No. 04 (2020): Malaya Journal of Matematik (MJM)

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Published

23-11-2020

How to Cite

S.S. Sandhya, and H. Aswathy. “Some Results on Harmonic Index of Root Square Mean Graphs”. Malaya Journal of Matematik, vol. 8, no. 04, Nov. 2020, pp. 2277-81, doi:10.26637/MJM0804/0163.