NEW VERSION OF SZEGED INDEX AND ITS COMPUTATION FOR SOME NANOTUBES
Ali Iranmanesh, Omid Khormali, I. Najafi, Behnam Soleimani
Abstract
Ali Iranmanesh, Omid Khormali, I. Najafi, Behnam Soleimani
Abstract
A graph G consists of a set of vertices ) (G V and a set of edges ) (G E . In chemical graphs, each vertex presented an atom of the molecule and covalent bonds between atoms are represented by edges between the corresponding vertices. This shape derived from a chemical compound is often called its molecular graph, and can be a path, a tree or in general a graph. A topological index is a single number, derived following a certain rule which can be used to characterize the molecule [1]. Usage of topological indices in biology and chemistry began in 1947 when chemist Harold Wiener [2] introduced Wiener number and the name of Wiener index was given by Hosoya [3]. Szeged index was introduced by Gutman and called the Szeged index, abbreviated as Sz [4]. The Szeged index is a modification of Wiener index to cyclic molecules. This was the vertex version of Sz index which had been defined as:
A significance statement is not available in the OpenAlex record.
A contribution statement is not available in the OpenAlex record.
Method details are not available in the OpenAlex metadata.
Findings are not separately available in the OpenAlex metadata.
Limitations are not available in the OpenAlex metadata.
Application details are not available in the OpenAlex metadata.
A graph G consists of a set of vertices ) (G V and a set of edges ) (G E . In chemical graphs, each vertex presented an atom of the molecule and covalent bonds between atoms are represented by edges between the corresponding vertices. This shape derived from a chemical compound is often called its molecular graph, and can be a path, a tree or in general a graph. A topological index is a single number, derived following a certain rule which can be used to characterize the molecule [1]. Usage of topological indices in biology and chemistry began in 1947 when chemist Harold Wiener [2] introduced Wiener number and the name of Wiener index was given by Hosoya [3]. Szeged index was introduced by Gutman and called the Szeged index, abbreviated as Sz [4]. The Szeged index is a modification of Wiener index to cyclic molecules. This was the vertex version of Sz index which had been defined as:
Key concepts: Wiener index, Molecular graph, Topological index, Vertex (graph theory), Combinatorics, Mathematical chemistry, Mathematics, Graph