Expander graphs from Curtis Tits groups
| Autor: | Blok, Rieuwert, Hoffman, Corneliu, Vdovina, Alina |
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| Rok vydání: | 2010 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.jcta.2011.10.007 |
| Popis: | Using the construction of a nonorientable Curtis-Tits group of type $\tilde A_n$, we obtain new explicit families of expander graphs of valency five for unitary groups over finite fields. Comment: Some results are strengthened |
| Databáze: | arXiv |
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