%0 Journal Article
%T The First and Second Zagreb Indices, First and Second Zagreb Polynomials of HAC5C6C7[p,q] and HAC5C7[p,q] Nanotubes
%J International Journal of Nanoscience and Nanotechnology
%I Iranian Nanotechnology Society
%Z 1735-7004
%A Farahani, M. R.
%D 2012
%\ 09/01/2012
%V 8
%N 3
%P 175-180
%! The First and Second Zagreb Indices, First and Second Zagreb Polynomials of HAC5C6C7[p,q] and HAC5C7[p,q] Nanotubes
%K Molecular Graph
%K Nanotubes
%K First Zagreb index
%K Second Zagreb index
%K Zagreb polynomial
%R
%X Topological indices are numerical parameters of a molecular graph G which characterize its topology. On
the other hands, computing the connectivity indices of molecular graphs is an important branch in chemical
graph theory. Therefore, we compute First Zagreb index Zg
1(G)= uv E
(G ) ( u v ), d d ∈ Σ + Second Zagreb index
Zg
2(G)=
( ) uv E (G ) u v d d ∈ Σ × and their polynomials Zg1(G,x)= ( )
d
u dv
uv E G
x
∈
Σ
+ and Zg2(G,x)= ( )
d
udv
uv E G
x
∈ Σ for two
famous families of nanotubes “HAC
5C6C7[p,q]” and “HAC5C7[p,q]”.
%U