TY - JOUR
ID - 10754
TI - The First and Second Zagreb Indices, First and Second Zagreb Polynomials of HAC5C6C7[p,q] and HAC5C7[p,q] Nanotubes
JO - International Journal of Nanoscience and Nanotechnology
JA - IJNN
LA - en
SN - 1735-7004
AU - Farahani, M. R.
AD - Department of Applied Mathematics, Iran University of Science and Technology (IUST), Tehran,
I. R. Iran
Y1 - 2012
PY - 2012
VL - 8
IS - 3
SP - 175
EP - 180
KW - Molecular Graph
KW - Nanotubes
KW - First Zagreb index
KW - Second Zagreb index
KW - Zagreb polynomial
DO -
N2 - 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]”.
UR - http://www.ijnnonline.net/article_10754.html
L1 -
ER -