Computing the Szeged and PI Indices of VC5C7[p,q] and HC5C7[p,q] Nanotubes

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 VC5C7[p,q] and HC5C7[p,q] nanotubes by this program.

Keywords

• Szeged index
• PI-index
• nanotubes
• Gap programming.