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  1. Subspace effective potential theory for configuration interaction
  2. Does the Kohn and Sham potential have the symmetry of the external potential?
  3. Symmetry preserving and improved energy states derived from asymmetric Hartree-Fock
  4. Approximate spin symmetries in single determinantal approximations of many electron systems
  5. Spin contamination for Hartree-Fock, optimized effective potential, and density functional approximations