The First and Second Zagreb Indices, First and Second Zagreb Polynomials of HAC5C6C7[p,q] and HAC5C7[p,q] Nanotubes
نوع مدرک
TextResearch Paper
زبان مدرک
Englishچکیده
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]".
کلید واژگان
Molecular GraphNanotubes
First Zagreb index
Second Zagreb index
Zagreb polynomial
شماره نشریه
3تاریخ نشر
2012-09-011391-06-11
ناشر
Iranian Nanotechnology Societyسازمان پدید آورنده
Department of Applied Mathematics, Iran University of Science and Technology (IUST), Tehran, I. R. Iranشاپا
1735-70042423-5911
