Topological indices are numerical parameters of a graph which characterize its topology and are usually graph invariant. In QSAR/QSPR study, physico-chemical properties and topological indices such as Randic, atom-bond ...

Let $G=(V,E)$ be an ordered pair, where $V(G)$ is a non-empty setof vertices and $E(G)$ is a set of edges called a graph. We denotea vertex by $v$ where $v \in V(G)$ and edge by $e$ where $e=uv \inE(G)$. we denote degree ...

Strong edge-coloring of a graph is a proper edge coloring such that every edge ofa path of length 3 uses three different colors. The strong chromatic index of a graphis the minimum number k such that there is a strong ...

Let $G=(V,E)$ be a simple graph. The energy of $G$ isthe sum of absolute values of the eigenvalues of its adjacencymatrix $A(G)$.In this paper weconsider the edge energy of $G$ (or energy of line of $G$) which is definedas ...

Topological indices are numerical parameters of a graph which characterize its topology and are usually graph invariant. In QSAR/QSPR study, physico-chemical properties and topological indices such as Randic, atom-bond ...

In the present paper, we introduce the automorphism group of cubic polyhedral graphs whose faces are triangles, quadrangles, pentagons and hexagons.

Strong edge-coloring of a graph is a proper edge coloring such that every edge of a path of length 3 uses three different colors. The strong chromatic index of a graph is the minimum number k such that there is a strong ...

Let G = (V,E) be an ordered pair, where V(G) is a non-empty set of vertices and E(G) is a set of edges called a graph. We denote a vertex by v, where v 2 V(G) and edge by e, where e = uv 2 E(G). We denote degree of vertex ...

Let G = (V,E) be a simple graph. The energy of G is the sum of absolute values of the eigenvalues of its adjacency matrix A(G). In this paper we consider the edge energy of G (or energy of line of G) which is defined as ...

On this occasion I thought that it is meaningful to trace back and document my personal history involved in this beautiful soccer ball shape and molecule C60 not only for myself but also for the next generation to follow. ...