A note on sum of powers of the Laplacian eigenvalues of graphs
نویسندگان
چکیده
For a graph G and a real α / = 0, we study the graph invariant sα(G) – the sum of the αth power of the non-zero Laplacian eigenvalues of G. The cases α = 2, 1 2 and −1 have appeared in different problems. Here we establish some properties for sα with α / = 0, 1. We also discuss the cases α = 2, 1 2 . © 2008 Elsevier Inc. All rights reserved. AMS classification: 05C50; 05C90
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ورودعنوان ژورنال:
- Appl. Math. Lett.
دوره 24 شماره
صفحات -
تاریخ انتشار 2011