A Class of Kaehler Einstein Structures on the Nonzero Cotangent Bundle   of a Space Form
  We obtain a class of Kaehler Einstein structures on the nonzero cotangent bundle of a Riemannian manifold of positive constant sectional curvature. The obtained class of Kaehler Einstein structure depends on one essential parameter, cannot have constant holomorphic sectional curvature and is not locally symmetric. 
Dumitru Daniel Porosniuc