On Counting Polynomials of Some Nanostructures

Document Type: Research Paper


Shahid Rajaee Teacher Training University, I. R. Iran


The Omega polynomial(x) was recently proposed by Diudea, based on the length of strips in given graph G. The Sadhana polynomial has been defined to evaluate the Sadhana index of a molecular graph. The PI polynomial is another molecular descriptor. In this paper we compute these three polynomials for some infinite classes of nanostructures.