A nanostructure belong to a significant and an extensively investigated compounds in
chemical science. It has been derived through engineering mechanism at the molecular …

Inspired by recent work of augmented Zagreb index (AZI) we propose here a new
topological index, Sanskruti index S (G) S (G) of a molecular graph G. In QSAR/QSPR study …

Abstract The Padmakar–Ivan (PI) index of a graph G is defined as PI (G)=∑[neu (e| G)+ nev
(e| G)], where neu (e| G) is the number of edges of G lying closer to u than to v, nev (e| G) is …

The eccentric connectivity index ξ (G) of a graph G is defined as ξ (G)=∑ u∈ V (G) deg (u) ε
(u), where deg (u) denotes the degree of the vertex u and ε (u) is the largest distance …

PADMAKAR - IVAN INDEX IN NANOTECHNOLOGY Page 1 Iranian Journal of Mathematical
Chemistry, Vol. 1, No. 1, April 2010, pp. 7− 42 IJMC Padmakar - Ivan Index in Nanotechnology …

A topological index of a graph G is a numeric quantity related to G which describes the
molecular graph G. A dendrimer is an artificially manufactured or synthesized molecule built …

Dendrimers are highly branched nanostructures and are considered a building block in
nanotechnology with a variety of suitable applications. In this paper, a vertex degree-based …

The Wiener index is a graphical invariant that has found extensive application in chemistry. It
is defined as W (G)= 1/2∑{x, y}⊆ V (G) d (x, y), where V (G) is the set of all vertices of G and …

THE VERTEX PI AND SZEGED INDICES OF AN INFINITE FAMILY OF FULLERENES Page
1 Journal of Theoretical and Computational Chemistry Vol. 7, No. 2 (2008) 221–231 c World …

Let Eβ (G) be the set of paths of length β in a graph G. For an integer β≥ 1 and a real
number α, the (β, α)-connectivity index is defined as β χα (G)=∑ v1v2··· vβ+ 1∈ Eβ (G)(dG …