A Summary of the Work of Gregory Margulis
Lizhen Ji · Pure and Applied Mathematics Quarterly · 2008
Gregory Margulis is a mathematician of great depth and originality. Besides his celebrated results on super-rigidity and arithmeticity of irreducible lattices of higher rank semisimple Lie groups, and the solution of the Oppenheim conjecture on values of irrational indefinite quadratic forms at integral points, he has also