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Some results on the Laplacian eigenvalues of unicyclic graphs

✍ Scribed by Jianxi Li; Wai Chee Shiu; Wai Hong Chan


Book ID
118485788
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
270 KB
Volume
430
Category
Article
ISSN
0024-3795

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In this paper we give two results concerning the signless Laplacian spectra of simple graphs. Firstly, we give a combinatorial expression for the fourth coefficient of the (signless Laplacian) characteristic polynomial of a graph. Secondly, we consider limit points for the (signless Laplacian) eigen