Article ID Journal Published Year Pages File Type
4601828 Linear Algebra and its Applications 2010 8 Pages PDF
Abstract

For k, d⩾2, a Bethe tree is a rooted tree with k levels which the root vertex has degree d, the vertices from level 2 to k-1 have degree d+1 and the vertices at the level k are pendent vertices. So et al, using a theorem by Ky Fan have obtained both upper and lower bounds for the Laplacian energy of bipartite graphs. We shall employ the above mentioned theorem to obtain new and improved bounds for the Laplacian energy in the case of Bethe trees.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory