Computing the Szeged and PI indices of VC(5)C(7)[p,q] and HC(5)C(7)[p,q] nanotubes

Ali Iranmanesh; Yaser Alizadeh; Bahman Taherkhani

doi:10.3390/ijms9020131

Computing the Szeged and PI indices of VC(5)C(7)[p,q] and HC(5)C(7)[p,q] nanotubes

Int J Mol Sci. 2008 Feb;9(2):131-144. doi: 10.3390/ijms9020131. Epub 2008 Feb 5.

Authors

Ali Iranmanesh¹, Yaser Alizadeh¹, Bahman Taherkhani²

Affiliations

¹ Department of Mathematics, Tarbiat Modares University, P. O. Box: 14115-137, Tehran, Iran.
² Department of Mathematics, Payame Noor University, Takestan/Gazvin, 3481699445, Iran.

Abstract

In this paper we give a GAP program for computing the Szeged and the PI indices of any graph. Also we compute the Szeged and PI indices of VC(5)C(7) [ p,q] and HC(5)C(7) [ p,q] nanotubes by this program.

Keywords: Gap programming; PI-index; Szeged index; nanotubes.