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math.DG2004★ 1 cited
Divergent torus orbits in homogeneous spaces of Q-rank two
Pralay Chatterjee, Dave Witte Morris
Let G be the real points of a semisimple algebraic Q-group, let H be an arithmetic subgroup of G and let T be the real points of an R-split torus in G. We prove that if there is a…
math.DG2002
Ergodic actions of semisimple Lie groups on compact principal bundles
Dave Witte, Robert J. Zimmer
Let G = SL(n,R) (or, more generally, let G be a connected, noncompact, simple Lie group). For any compact Lie group K, it is easy to find a compact manifold M, such that there is a…