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arXiv:1009.0667 [math.GR]AbstractReferencesReviewsResources

Expander graphs from Curtis Tits groups

Rieuwert Blok, Corneliu Hoffman, Alina Vdovina

Published 2010-09-03, updated 2011-10-28Version 2

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.

Comments: Some results are strengthened
Categories: math.GR, math.CO, math.GT
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