We prove the Farrell-Jones Isomorphism Conjecture for groups acting properly discontinuously via isometries on(real) hyperbolic n-space H-n with finite volume orbit space. We then apply this result to show that, for any Bianchi group Gamma, Wh(Gamma), (K) over tilde(0)(Z Gamma), and K-i(Z Gamma) vanish for i less than or equal to -1.
Title
The Farrell-Jones Isomorphism Conjecture for finite covolume hyperbolic actions and the algebraic K-theory of Bianchi groups
Berkove, E., et al. (2000) "The Farrell-Jones Isomorphism Conjecture for finite covolume hyperbolic actions and the algebraic K-theory of Bianchi groups." Transactions of the American Mathematical Society 352 (12): 5689-5702.