### On the Baum-Connes conjecture in the real case, by Paul Baum and Max Karoubi

In this paper we prove that if the classical Baum-Connes conjecture in
complex K-theory is true (for a given discrete group G), then the
conjecture is also true in the real case. According to S. Stolz, this
result is linked with the existence of a Riemannian metric of positive
scalar curvature on a compact connected spin manifold with G as
fundamental group.

Paul Baum <baum@math.psu.edu>
Max Karoubi <karoubi@math.jussieu.fr>