Poisson transforms for real rank one semisimple Lie groups have sharp boundedness and closed-range properties from Sobolev spaces to L2 spaces, with compact commutators, proving the remaining open part of Julg's conjecture on the Baum-Connes conjecture.
Lafforgue,BanachKK-theory and the Baum-Connes conjecture, Proceedings of the International Congress of Mathematicians, Vol
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Sharp mapping properties of Poisson transforms and the Baum-Connes conjecture
Poisson transforms for real rank one semisimple Lie groups have sharp boundedness and closed-range properties from Sobolev spaces to L2 spaces, with compact commutators, proving the remaining open part of Julg's conjecture on the Baum-Connes conjecture.