Title of article :
On the Estrada index of Seidel Matrix
Author/Authors :
Hakimi-Nezhaad ، Mardjan Department of Mathematics - Faculty of Science - Shahid Rajaee Teacher Training University , Ghorbani ، Modjtaba Department of Mathematics - Faculty of Science - Shahid Rajaee Teacher Training University
Abstract :
Let G be a simple graph with n vertices and with the Seidel matrix S. Suppose μ1, μ2,..., μn are the Seidel eigenvalues of G. The Estrada index of the Seidel matrix of G is defined as SEE(G)=sum_{i=1}^{n} eμi. In this paper, we compute the Estrada index of the Seidel matrix of some known graphs. Also, some bounds for the Seidel energy of graphs are given.
Keywords :
Seidel matrix , Seidel eigenvalue , Estrada index
Journal title :
Mathematics Interdisciplinary Research
Journal title :
Mathematics Interdisciplinary Research
