| Authors: | Stevanović, Dragan Milošević, Marko |
Title: | A spectral proof of the uniqueness of a strongly regular graph with parameters (81, 20, 1, 6) | Journal: | European Journal of Combinatorics | Volume: | 30 | Issue: | 4 | First page: | 957 | Last page: | 968 | Issue Date: | 1-May-2009 | Rank: | M21 | ISSN: | 0195-6698 | DOI: | 10.1016/j.ejc.2008.07.021 | Abstract: | We give a new proof that there exists a unique strongly regular graph with parameters (81, 20, 1, 6). Unlike the finite geometry approach used by Brouwer and Haemers, we use linear algebra and spectral graph theory concepts, namely the technique of star complements, in our proof. |
Publisher: | Elsevier | Project: | Slovenian Agency for Research, program P1-0285 Serbian Ministry of Science, grant 144026 |
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