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Estrada index of dendrimers

G. H. FATH-TABAR1, Z. YARAHMADI2, A. R. ASHRAFI1,*

Affiliation

  1. Department of Mathematics, Faculty of Science, University of Kashan, Kashan 87317-51167, I. R. Iran
  2. Department of Mathematics, Faculty of Science, Islamic Azad University, Khorramabad Branch, Khorramabad, I. R. Iran

Abstract

Let G be a graph and λ1, λ2, … λn be the eigenvalues of G. The Estrada index EE(G) of the graph G is defined as the sum of , 1 ≤ i ≤ n. In this paper some upper and lower bounds for the Estrada index of a general dendrimer is presented..

Keywords

Estrada index, Dendrimer.

Citation

G. H. FATH-TABAR, Z. YARAHMADI, A. R. ASHRAFI, Estrada index of dendrimers, Optoelectronics and Advanced Materials - Rapid Communications, 4, 1, January 2010, pp.53-55 (2010).

Submitted at: Dec. 29, 2009

Accepted at: Jan. 19, 2010