@article{farahani2014,
author = {Farahani, Mohammad Reza},
title = {On the SD-Polynomial and SD-Index of an Infinite Class of “Armchair Polyhex Nanotubes”},
year = {2014},
month = {3},
volume = {31},
pages = {63--68},
journal = {International Letters of Chemistry, Physics and Astronomy},
doi = {10.18052/www.scipress.com/ILCPA.31.63},
keywords = {Omega and Sadhana Polynomial, Sadhana Index, Armchair Polyhex Nanotubes Andnanotori},
abstract = {Let G be a simple connected graph with the vertex set V = V(G) and the edge set E = E(G),without loops and multiple edges. For counting qoc strips in G, Diudea introduced the $\Omega$-polynomialof G and was defined as $\Omega$(G, x) = ∑ki-1xi where C1, C2,..., Ck be the “opposite edge strips” ops of Gand ci = |Ci| (I = 1, 2,..., k). One can obtain the Sd-polynomial by replacing xc with x|E(G)|-c in $\Omega$-polynomial. Then the Sd-index will be the first derivative of Sd(x) evaluated at x = 1. In this paper wecompute the Sd-polynomial and Sd-index of an infinite class of “Armchair Polyhe x Nanotubes”.}
}