Expansion and random walks in : II
Jean Bourgain
Institute for Advanced Study, Princeton, United StatesAlex Gamburd
University of California at Santa Cruz, United States
Abstract
We prove that Cayley graphs of SL_d_(ℤ/_pn_ℤ) are expanders with respect to the projection of any fixed elements in SL2(ℤ) generating a Zariski-dense subgroup.
Cite this article
Jean Bourgain, Alex Gamburd, Expansion and random walks in : II. J. Eur. Math. Soc. 11 (2009), no. 5, pp. 1057–1103
DOI 10.4171/JEMS/175