On Kazhdan's property (T) for isotropic reductive groups
arXiv:1602.03162
Abstract
We show that the standard set of elementary generators of an elementary isotropic reductive group over a connected finitely generated ring is a Kazhdan subset. This generalizes the corresponding result of M. Ershov, A. Jaikin-Zapirain, and M. Kassabov for Chevalley and twisted Chevalley groups.
arXiv admin note: substantial text overlap with arXiv:1512.00354, arXiv:1404.7587