<abstract xmlns="http://www.w3.org/1999/xhtml"> Let G = (V,E) be a simple connected molecular graph. In such a simple molecular graph, vertices represent atoms and edges represent chemical bonds, we denoted the sets of vertices and edges by V = V (G) and E = E(G), respectively. If d(u, ν) be the notation of distance between vertices u, ν ∈ V and is defined as the length of a shortest path connecting them. Then, Eccentricity connectivity polynomial of a molecular graph G is defined as ECP(G, x) = ∑ν∈V dG(ν)xecc(ν), where ecc(ν) is defined as the length of a maximal path connecting to another vertex of v. dG(ν) (or simply dv) is degree of a vertex ν ∈ V (G), and is defined as the number of adjacent vertices with v. In this paper, we focus on the structure of molecular graph circumcoronene series of benzenoid Hk (k ≥ 2) and counting the eccentricity connectivity polynomial ECP(Hk) and eccentricity connectivity index ξ(Hk), by new method (called Ring-cut Method). </abstract>

Let G = (V,E) be a simple connected molecular graph. In such a simple molecular graph, vertices represent atoms and edges represent chemical bonds, we denoted the sets of vertices and edges by V = V (G) and E = E(G), respectively. If d(u, ν) be the notation of distance between vertices u, ν ∈ V and is defined as the length of a shortest path connecting them. Then, Eccentricity connectivity polynomial of a molecular graph G is defined as ECP(G, x) = ∑ν∈V dG(ν)xecc(ν), where ecc(ν) is defined as the length of a maximal path connecting to another vertex of v. dG(ν) (or simply dv) is degree of a vertex ν ∈ V (G), and is defined as the number of adjacent vertices with v. In this paper, we focus on the structure of molecular graph circumcoronene series of benzenoid Hk (k ≥ 2) and counting the eccentricity connectivity polynomial ECP(Hk) and eccentricity connectivity index ξ(Hk), by new method (called Ring-cut Method).

Computing Eccentricity Connectivity Polynomial of Circumcoronene Series of Benzenoid Hk by Ring-Cut Method

Department of Applied Mathematics, Iran University of Science and Technology (IUST), Narmak, Tehran 16844, Iran

Annals of West University of Timisoara - Mathematics and Computer Science

Computing Eccentricity Connectivity Polynomial of Circumcoronene Series of Benzenoid H by Ring-Cut Method

Let G = (V,E) be a simple connected molecular graph. In such a simple molecular graph, vertices represent atoms and edges represent chemical bonds, we denoted...

Computing Eccentricity Connectivity Polynomial of Circumcoronene Series of Benzenoid H_k by Ring-Cut Method

Publié en ligne: 22 janv. 2014

Pages: 29 - 37

DOI: https://doi.org/10.2478/awutm-2013-0013

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