| Authors: | Simić, Slobodan Stanić, Zoran |
Affiliations: | Mathematical Institute of the Serbian Academy of Sciences and Arts | Title: | On Q-integral (3, s)-semiregular bipartite graphs | Journal: | Applicable Analysis and Discrete Mathematics | Volume: | 4 | Issue: | 1 | First page: | 167 | Last page: | 174 | Issue Date: | 1-Apr-2010 | Rank: | M22 | ISSN: | 1452-8630 | DOI: | 10.2298/AADM1000002S | Abstract: | A graph is called Q-integral if its signless Laplacian spectrum consists entirely of integers. We establish some general results regarding signless Laplacians of semiregular bipartite graphs. Especially, we consider those semiregular bipartite graphs with integral signless Laplacian spectrum. In some particular cases we determine the possible Q-spectra and consider the corresponding graphs. |
Keywords: | Integral eigenvalues | Semiregular bipartite graphs | Signless laplacian spectrum | Publisher: | School of Electrical Engineering, University of Belgrade | Project: | Serbian Ministry of Science, Projects 144015D and 1144032D |
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