Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques naturelles / sciences mathematiques Vol. CXXXVII, No. 33, pp. 131–146 () 

New theorems for signless Laplacian eigenvaluesD. CvetkovicMathematical Institute SANU, P.O. Box 367, 11000 Belgrade, SerbiaAbstract: We extend our previous surveys of properties of spectra of signless Laplacians of graphs. Some new theorems for the signless Laplacian eigenvalues are given. In particular, a theorem on spectral characterization of graphs with $Q$index not exceeding 4 is proved. The signless Laplacian eigenvalues of connected graphs on six vertices are given in Appendix. Keywords: graph theory, graph spectra, signless Laplacian, subdivision graph, tree, unicyclic graph Classification (MSC2000): 05C50 Full text of the article: (for faster download, first choose a mirror)
Electronic fulltext finalized on: 7 Sep 2008. This page was last modified: 20 Jun 2011.
© 2008 Mathematical Institute of the Serbian Academy of Science and Arts
