Andreas Galanis, Daniel Stefankovic, Eric Vigoda. Inapproximability for antiferromagnetic spin systems in the tree non-uniqueness region. In David B. Shmoys, editor, Symposium on Theory of Computing, STOC 2014, New York, NY, USA, May 31 - June 03, 2014. pages 823-831, ACM, 2014. [doi]
Abstract is missing.