Atom–bond connectivity index of graphs: a review over extremal results and bounds 1.
Introduction Page 1 Discrete Mathematics Letters www.dmlett.com Discrete Math. Lett. 5 (2021) …

Abstract Machine learning methods provide powerful tools to map physical measurements to
scientific categories. But are such methods suitable for discovering the ground truth about …

Phenylenes are a class of conjugated hydrocarbons composed of a special arrangement of
six-and four-membered rings. In this paper, the expected values of the atom-bond …

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 …

Graph theory plays a vital role in modeling and designing any chemical structure or
chemical network. Chemical graph theory helps in understanding the molecular structural …

Graph theory is a fundamental and energetic tool for designing and modeling a
graph/network. There are certain topological indices based on degree, distance and …

The atom-bond sum-connectivity index ABS is a recently introduced vertex-degree-based
graph invariant, defined as the sum over all pairs of adjacent vertices u; v of the term√(du+ …

In this article, we are interested in characterizing graphs with three distinct arithmetic–
geometric eigenvalues. We provide the bounds on the arithmetic–geometric energy of …

A special class of conjugated hydrocarbons is known as phenylenes, which is composed of
a special arrangement of six-and four-membered rings. In particular, any two six-membered …

We study the Sombor index and the Sombor spectral properties of chain graphs. In
particular, an explicit formula for the Sombor index is given, the Sombor eigenvalues are …