Ferromagnetic Potts Model: Refined #BIS-hardness and Related Results

  title={Ferromagnetic Potts Model: Refined #BIS-hardness and Related Results},
  author={Andreas Galanis and Daniel Stefankovic and Eric Vigoda and Linji Yang},
Recent results establish for the hard-core model (and more generally for 2-spin antiferromagnetic systems) that the computational complexity of approximating the partition function on graphs of maximum degree ∆ undergoes a phase transition that coincides with the uniqueness/non-uniqueness phase transition on the infinite ∆-regular tree. For the ferromagnetic Potts model we investigate whether analogous hardness results hold. Goldberg and Jerrum showed that approximating the partition function… CONTINUE READING
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