Let G be a simple graph with the vertex set V={v 1,…, vn} and denote by dvi the degree of
the vertex vi. The modified Sombor index of G is the addition of the numbers (dvi 2+ dvj 2) …

Molecular topology can be described by using topological indices. These are quantitative
measures of the essential structural features of a proposed molecule calculated from its …

A topological descriptor is a numerical value derived from the molecular structure that
encapsulates the most important structural characteristics of the molecule under …

The general eccentric connectivity index of a graph R is defined as ξ ec (R)=∑ u∈ V (G) d
(u) ec (u) α, where α is any real number, ec (u) and d (u) represent the eccentricity and the …

The power graph denoted by $\mathcal {P}(\mathcal {G}) $ of a finite group $\mathcal {G} $
is a graph with vertex set $\mathcal {G} $ and there is an edge between two distinct …

Background: Chemical graph theory is a sub-branch of mathematical chemistry, assuming
each atom of a molecule is a vertex and each bond between atoms as an edge. Objective …

This paper reveals the relationship between edge-Hosoya polynomial and the Hosoya
polynomial of catacondensed benzenoid graphs. The result shows that, for a catacondensed …