Cosmological singularities, AdS/CFT and de Sitter deformations
  We review aspects of certain time-dependent deformations of $AdS/CFT$ containing cosmological singularities and their gauge theory duals. Towards understanding these solutions better, we explore similar singular deformations of de Sitter space and argue that these solutions are constrained, possibly corresponding to specific initial conditions. 
K. Narayan
hep-th gr-qc