| Authors: | Simić, Slobodan Stanić, Zoran |
Affiliations: | Mathematical Institute of the Serbian Academy of Sciences and Arts | Title: | Q-integral graphs with edge-degrees at most five | Journal: | Discrete Mathematics | Volume: | 308 | Issue: | 20 | First page: | 4625 | Last page: | 4634 | Issue Date: | 28-Oct-2008 | Rank: | M23 | ISSN: | 0012-365X | DOI: | 10.1016/j.disc.2007.08.055 | Abstract: | We consider the problem of determining the Q-integral graphs, i.e. the graphs with integral signless Laplacian spectrum. We find all such graphs with maximum edge-degree 4, and obtain only partial results for the next natural case, with maximum edge-degree 5. |
Keywords: | Edge-degree | Integral eigenvalues | Signless Laplacian spectrum | Publisher: | Elsevier | Project: | Serbian Ministry of Science, Projects 144015D and 144032D |
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