Expander graphs from Curtis Tits groups
Group Theory
2011-10-31 v2 Combinatorics
Geometric Topology
Abstract
Using the construction of a nonorientable Curtis-Tits group of type , we obtain new explicit families of expander graphs of valency five for unitary groups over finite fields.
Cite
@article{arxiv.1009.0667,
title = {Expander graphs from Curtis Tits groups},
author = {Rieuwert Blok and Corneliu Hoffman and Alina Vdovina},
journal= {arXiv preprint arXiv:1009.0667},
year = {2011}
}
Comments
Some results are strengthened