A Note on the Estrada Index of Trees

作者:Deng; Hanyuan
来源:MATCH-Communications in Mathematical and in Computer Chemistry, 2009, 62(3): 607-610.

摘要

The trees with the fourth, fifth, and sixth greatest Estrada index are determined among all trees on n vertices, and the first six trees with the greatest Estrada index are exactly the first six trees with the greatest eigenvalue.