Expanders and Property A
Geometric Topology
2014-10-01 v1 Group Theory
K-Theory and Homology
Abstract
We give a cohomological characterisation of expander graphs, and use it to give a direct proof that expander graphs do not have Yu's property A.
Cite
@article{arxiv.1108.6232,
title = {Expanders and Property A},
author = {A. Khukhro and N. J. Wright},
journal= {arXiv preprint arXiv:1108.6232},
year = {2014}
}