Non-Local Gravity from Hamiltonian Point of View
  This short note is devoted to the canonical analysis of the non-local theories of gravity. We find their Hamiltonian and determine the algebra of constraints. We perform this analysis for non-local theories of gravity formulated both in Jordan and Einstein frame. The result of our analysis suggests that Hamiltonian formulation does not bring to clear identification of ghosts presence in non-local gravity. 
J. Kluson
hep-th gr-qc