New critical frontiers for the potts and percolation models.
We obtain the critical threshold for a host of Potts and percolation models on lattices having a structure which permits a duality consideration. The consideration generalizes the recently obtained thresholds of Scullard and Ziff for bond and site percolation on the martini and related lattices to the Potts model and to other lattices.
Wu
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Northeastern University, Boston, Massachusetts 02115, USA.