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Research Article Open access CC BY 4.0

Computing Y-index of Different Corona Products of Graphs

S. Nagarajan, M. Durga

Asian Research Journal of Mathematics · pp. 67–74 · Published 21 Aug 2023

10.9734/arjom/2023/v19i10729

Abstract

The Y-index of a graph is defined by the sum of four of degrees of the vertices of a graph. Among the all topological indices the Zagreb indices have been used more considerably than any other topological indices in chemical literature. The concept of Corona Product is a recent inclusion to mathematical vocabulary. One of the most significant graph operations is the corona product of several generic and specific graphs, which is one of the most well-known graph products. In this study, we derive some explicit formulations of several corona product types, including subdivision-vertex corona, subdivision-edge corona, subdivision-vertex neighborhood corona, subdivision-edge neighborhood corona, and vertex-edge corona of two graphs.

Topological index Zagreb index Y-index corona product graph operations

Cited by 2

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