Many dynamical effects in biology, social and technological complex systems have recently
revealed their relevance to group interactions beyond traditional dyadic relationships …

Abstract Let f (x, y)(f (x)) be a symmetric real function (real function) and G=(V, E) be a graph.
Denote by di the degree of a vertex i in G. The graphical function-index TIf (G)(Hf (G)) of G …

One of the crucial problems in combinatorics and graph theory is characterizing extremal
structures with respect to graph invariants from the family of chemical trees. Cruz et …

One of the most recent advancements in graph theory is the use of a multidisciplinary
approach to the investigation of specific structural dependent features, such as physico …

Investigation of chemical applicability and mathematical properties of topological indices is
the contemporary research trend in chemical graph theory. The geometric arithmetic index …

The exponential second Zagreb index of a connected graph G, denoted by e M 2 (G), is
defined as the sum of the weights ed G (u) d G (v) over all edges uv∈ E (G), where d G (u) …

A topological index is a numerical property of a molecular graph that explains structural
features of molecules. The potential of topological indices to discriminate between distinct …

The exponential second Zagreb index of a graph G is defined as e M 2 (G)=∑ xy∈ E (G)
edxdy, where dx is the degree of vertex x. Recently, Eliasi (Discrete Appl Math 307: 172 …

In this work we obtain new lower and upper optimal bounds for general (exponential)
indices of a graph. In the same direction, we show new inequalities involving some well …

Most of the molecular graphs in the area of mathematical chemistry are irregular. Therefore,
irregularity measure is a crucial parameter in chemical graph theory. One such measure that …