scholarly journals Vertex-degree-based topological indices over starlike trees

2015 ◽  
Vol 185 ◽  
pp. 18-25 ◽  
Author(s):  
Clara Betancur ◽  
Roberto Cruz ◽  
Juan Rada
2017 ◽  
Vol 23 (1) ◽  
pp. 277-289
Author(s):  
Juan Rada

In this paper we give a complete description of the ordering relations in the set of catacondensed hexagonal systems, with respect to a vertex-degree-based topological index. As a consequence, extremal values of vertex-degree-based topological indices in special subsets of the set of catacondensed hexagonal systems are computed.


2020 ◽  
Vol 5 (2) ◽  
pp. 99-108
Author(s):  
◽  
P. S Ranjini ◽  
V. Lokesha ◽  
Sandeep Kumar

AbstractTopological indices play a very important role in the mathematical chemistry. The topological indices are numerical parameters of a graph. The degree sequence is obtained by considering the set of vertex degree of a graph. Graph operators are the ones which are used to obtain another broader graphs. This paper attempts to find degree sequence of vertex–F join operation of graphs for some standard graphs.


2019 ◽  
Author(s):  
Roshini Gujar Ravichandra ◽  
Chandrakala Sogenahalli Boraiah ◽  
Sooryanarayana Badekara

2016 ◽  
Vol 3 (3) ◽  
pp. 1921-1930 ◽  
Author(s):  
Akbar Ali ◽  
Akhlaq Ahmad Bhatti ◽  
Zahid Raza

2021 ◽  
Vol 12 (2) ◽  
pp. 2275-2284

Several research reports suggest that there is a strong interdependence among the molecular structure of chemical compounds and their physicochemical properties. The computation of the topological index of such a chemical structure facilitates researchers to gain more insight into the physical and bio-activity of chemical materials. In this article, we focus on WO3, which is a widely studied nanomaterial and is recently employed as an excellent cytotoxic agent towards the liver (Hep–2) and the breast (MCF–7) cancerous cells. Various vertex degree-based multiplicative versions of topological indices for WO3 nano multilayer were computed using the edge partition technique. We also compared all of the indices graphically. The obtained results redress the lack of medical and chemical experiments, thus constructing the theoretical framework for the pharmacological field.


2013 ◽  
Vol 572 ◽  
pp. 154-157 ◽  
Author(s):  
Juan Rada ◽  
Roberto Cruz ◽  
Ivan Gutman

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