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Zbl 1227.05184
Li, Rao
Some lower bounds for Laplacian energy of graphs.
(English)
[J] Int. J. Contemp. Math. Sci. 4, No. 5-8, 219-223 (2009). ISSN 1312-7586; ISSN 1314-7544/e

Summary: The Laplacian energy of a graph $G$ is defined as $LE(G) = \sum^n _{i=1} |\lambda _i - \frac{2m}{n} |$, where $\lambda _1 ( G) \geq \lambda _2 ( G), \dots , \geq \lambda _n ( G) = 0$ are the Laplacian eigenvalues of the graph $G$. Some lower bounds for Laplacian energy of graphs are presented in this note.
MSC 2000:
*05C50 Graphs and matrices

Keywords: Laplacian; eigenvalue of graphs; energy of graphs

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