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Computing GA index and ABC index of V – phenylenic nanotube

M. GHORBANI1,* , H. MESGARANI1, S. SHAKERANEH1

Affiliation

  1. Department of Mathematics, Faculty of Science, Shahid Rajaee, Teacher Training University, Tehran, 16785-136, I. R. Iran

Abstract

Among topological descriptors topological indices are very important and they have a prominent role in chemistry. One of them is atom - bond connectivity (ABC) index defined as d ( ) d ( ) 2 ( ) d ( )d ( )      G G uv E G G u v ABC G u v , where G d (u ) denotes degree of vertex u. In this paper we compute this new topological index for V – phenylenic nanotube. (.

Keywords

Topological index, Atom bond connectivity index, Geometric - arithmetic index, Nanotube.

Citation

M. GHORBANI, H. MESGARANI, S. SHAKERANEH, Computing GA index and ABC index of V – phenylenic nanotube, Optoelectronics and Advanced Materials - Rapid Communications, 5, 3, March 2011, pp.324-326 (2011).

Submitted at: March 6, 2011

Accepted at: March 16, 2011