The Similarity Problem for Z-stable C*-algebras
  We show that the tensor product of two unital C*-algebras, one of which is nuclear and admits a unital *-homomorphism from (the building blocks of) the Jiang-Su algebra, has Kadison's similarity property. As a consequence, we obtain that a unital C*-algebra which absorbs the Jiang-Su algebra tensorially also has this property. 
Miroslava Johanesova and Wilhelm Winter
math.OA