id: 06101012 dt: j an: 06101012 au: Shang, Yilun ti: Lower bounds for the Estrada index. so: Electron. J. Linear Algebra 23, 664-668, electronic only (2012). py: 2012 pu: ILAS - The International Linear Algebra Society c/o Daniel Hershkowitz, Department of Mathematics, Technion - Israel Institute of Techonolgy, Haifa la: EN cc: ut: estrada index; lower bound; graph spectrum; Zagreb index ci: li: http://www.math.technion.ac.il/iic/ela/ela-articles/articles/vol23_pp664-668.pdf ab: Summary: Let $G$ be a graph with $n$ vertices and $λ_1, λ_2, \dots,n$ be its eigenvalues. The Estrada index of $G$ is defined as $EE(G) = \sum_{i=1}^n e^{λ_i}$. In this paper, new lower bounds for the Estrada index are established. rv: