The 3-State Square-Lattice Potts Antiferromagnet at Zero Temperature
  We study the 3-state square-lattice Potts antiferromagnet at zero temperature by a Monte Carlo simulation using the Wang-Swendsen-Koteck\'y cluster algorithm, on lattices up to $1024 \times 1024$. We confirm the critical exponents predicted by Burton and Henley based on the height representation of this model. 
J. Salas (Zaragoza U.) and A.D. Sokal (New York U.)