The Laplacian-energy like of graphs
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Bao-Xuan Zhu
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Article
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2011
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Elsevier Science
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English
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Assume that ยต 1 , ยต 2 , . . . , ยต n are eigenvalues of the Laplacian matrix of a graph G. The Laplacian-energy like of G, is defined as follows: In this note, we give upper bounds for LEL(G) in terms of connectivity or chromatic number and characterize the corresponding extremal graphs.