A topological index is a graph invariant, which is generated as a real number from a set of finite graphs. A large number of topological indices have been developed based on vertex degree, eccentricity, etc. and studied extensively. In this paper we propose a new version of the inverse sum indeg index (ISI), sum-connectivity index (SCI), redefined third Zagreb index and (a,b)- Zagreb index based on S-degrees of vertices a graph and discuss them in connection with SiO2 layer structure in a graph theoretic perspective.
Author(s) Details
Budheswar Deka
Department of Mathematics, Dibrugarh University, Dibrugarh-786004, India.
Abhigyan Mahanta
Department of Mathematics, Dibrugarh University, Dibrugarh-786004, India.
A. Bharali
Department of Mathematics, Dibrugarh University, Dibrugarh-786004, India.
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