مقاله‌های &Ž

Wiener index is a topological index based on distance between every pair of vertices in agraph G. It was introduced in 1947 by one of the pioneer of this area e.g, Harold Wiener. In the present paper, by using a new method introduced by Klavžar, we...

Topological indices are numerical parameters of a graph which characterize its topology. Inthis paper the PI, Szeged and Zagreb group indices of the tetrameric 1,3–adamantane arecomputed.

Let G be a graph. In this paper, we study the eccentric connectivity index, the new version of the second Zagreb index and the forth geometric–arithmetic index.. The basic properties of these novel graph descriptors and some inequalities for them are...

A recently published paper [T. Došlić, this journal 3 (2012) 25–34] considers the Zagreb indices of benzenoid systems, and points out their low discriminativity. We show that analogous results hold for a variety of vertex–degree–based molecular...

Let G be a simple connected graph. The first and second Zagreb indices have been introduced as  vV(G) (v)2 M1(G) degG and M2(G)  uvE(G)degG(u)degG(v) , respectively, where degG v(degG u) is the degree of vertex v (u) . In this paper, we define...