نویسندگان : G. H. Fath-Tabar A. R. Ashrafi D. Stevanovic
Let G be a graph and x_1,x_2,..., x_n be the eigenvalues of G. The Estrada index EE(G) of the graph G is defined as the sum of e^i ,1≤i ≤n. In this paper some upper and lower bounds for the Estrada index of fullerene graphs are presented.
Estrada Index, Fullerene.
