Amenability and Uniqueness
  The main result of this paper is a characterization of properly infinite injective von Neumann algebras and of nuclear C*-algebras by using a uniqueness theorem, based on generalizations of Voiculescu's famous Weyl-von Neumann theorem. 
A. Ciuperca, T. Giordano, P. W. Ng, Z. Niu
math.OA