Abstract Homomorphisms of Big Subgroups of Algebraic Groups

Abstract

Contents

• A. Motivation

• B. Evident restrictions

• C. Isotropic semi-simple groups over fields

• D. Short remarks on O'Meara's method

• E. Tits' results on homomorphisms of Lie groups

• F. Rigidity, strong rigidity, and superrigidity of lattices

• G. Quotient groups of lattices

• H. Lattices in PSO(n,1) and PSU(n,1)

• I. Concluding remarks