Finite semigroups imposing tractable constraints

Geahča maid

• Tractable constraints closed under a binary operation
  Dahkki: Bulatov, A, et al.
  Almmustuhtton: (2000)
• Perfect Constraints Are Tractable
  Dahkki: Salamon, A, et al.
  Almmustuhtton: (2008)
• Perfect Constraints Are Tractable
  Dahkki: Salamon, A, et al.
  Almmustuhtton: (2008)
• Tractable valued constraints
  Dahkki: Jeavons, P, et al.
  Almmustuhtton: (2012)
• Tractable Valued Constraints
  Dahkki: Jeavons, P, et al.
  Almmustuhtton: (2013)