  Let G be a connected semisimple Lie group without compact factors whose real
rank is at least 2, and let \Gamma \subset G be an irreducible lattice. We
provide a C^\infty classification for volume-preserving Cartan actions of
\Gamma and G. Also, if G has real rank at least 3, we provide a C^\infty
classification for volume-preserving, multiplicity free, trellised, Anosov
actions on compact manifolds.
