Papers and Preprints
- Superrigidity theorems in positive characteristic.
J. Algebra 229, 375-404 (2000)
- On abstract homomorphisms of Chevalley groups with
non-reductive image I.
(with A. Rapinchuk), J. Algebra 242, 31-59 (2001)
- On automorphisms of arithmetic subgroups of unipotent
groups in positive characteristic.
(with D. Witte), Comm. Algebra 30, no. 6, 2715-2743 (2002)
- Arithmeticity of rank-1 lattices with dense commensurators
in positive characteristic.
J. Algebra 261, 44-53 (2003)
- Isotropic non-archimedean S-arithmetic groups are not left-orderable.
(with D. Morris), Comptes Rendus Acad. Sci. Paris, Ser. 1339, no. 6, 417-420 (2004)
- Bounded generation and lattices that cannot act on the line.
(with D. Morris), Pure and Applied Mathematics Quaterly,
to appear
- Almost-minimal non-uniform lattices of higher rank.
(with V. Chernousov and D. Morris), Michigan Mathematical Journal,
to appear