摘要
Let G be a simple graph of order n, and let mu(1) >= mu(2) >= ... >= mu(n) = 0 be the Laplacian spectrum of G. The Laplacian-energy-like invariant of G, LEL for short, is defined as LEL(G) = Sigma(n-1)(i=1) root mu(i). In this paper, we survey results on LEL, with emphasis on the bounds and extremal graphs of LEL.
- 出版日期2011
- 单位华南师范大学