Szeged-like topological indices and the efficacy of the cut method: The case of melem structures | [Discrete Mathematics Letters • 2022]

Author(s):

1. Micheal Arockiaraj: Department of Mathematics, Loyola College,Chennai,India

2. Shagufa Mushtaq: Department of Mathematics, Loyola College,Chennai,India

3. Sandi Klavzˇar: Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia ;Faculty of Natural Sciences and Mathematics, University of Maribor, Maribor, Slovenia ;Institute of Mathematics, Physics and Mechanics, Ljubljana, Slovenia

4. J. Celin Fiona: Department of Mathematics, Loyola College,Chennai,India

5. Krishnan Balasubramanian: School of Molecular Sciences, Arizona State University,Tempe,USA

Abstract:

The Szeged index is a bond-additive topological descriptor that quantifies each bond's terminal atoms based on their closeness sets which is measured by multiplying the number of atoms in the closeness sets. Based on the high correlation between the Szeged index and physico-chemical properties of chemical compounds, Szeged-like indices have been proposed by considering closeness sets with bond counts and other mathematical operations like addition and subtraction. As there are many ways to compute the Szeged-like indices, the cut method is predominantly used due to its complexity compared to other approaches based on algorithms and interpolations. Yet, we here analyze the usefulness of the cut method in the case of melem structures and find that it is less effective when the size and shape of the cavities change in the structures.

Page(s): 49-56

DOI: 10.47443/dml.2021.s209

Published: Journal: Discrete Mathematics Letters, Volume: 9, Issue: 0, Year: 2022

Keywords:

distance , cutmethod , melem , Szeged index

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