Although the concept of geometric-arithmetic indices has been introduced in the chemical
graph theory recently, these indices have already been proved to be useful. After the …

Abstract Let V (G) and E (G) be, respectively, the vertex set and edge set of a graph G. The
general sum-connectivity index of a graph G is denoted by χ α (G) and is defined as∑ uv∈ …

This article is devoted to establishing some extremal results with respect to the difference of
two well‐known bond incident degree indices [atom‐bond connectivity (ABC) index and …

Topological indices have been used to modeling biological and chemical properties of
molecules in quantitive structure property relationship studies and quantitive structure …

Abstract Let G=(V, E) be a simple connected graph, where V (G) and E (G) represent the
vertex set and edge set of G respectively. The vertex set V (G) associates with the atoms and …

We consider only simple, undirected and finite graphs. A graph is denoted by G= G (V, E),
where V is its vertex set and E its edge set. The order of G is the number n=| V (G)| of its …

The inverse degree of a graph G with no isolated vertices is defined as the sum of reciprocal
of vertex degrees of the graph G. In this paper, we obtain several lower and upper bounds …

The main concern of this article is to present the complete classification of tetracyclic
(chemical) graphs and establishing some extremal results with respect to the geometric …

Three general molecular descriptors, namely the general sum‐connectivity index, general
Platt index and ordinary generalized geometric‐arithmetic index, are studied here. Best …

The general sum-connectivity index of a graph, denoted by, is defined as, where is the edge
connecting the vertices, denotes the degree of a vertex, and is a non-zero real number. For …