Comment on ``Duality relations for Potts correlation functions''

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In a recent paper by Wu (Phys. Lett. A 228, 43-47 (1997)) the three-point correlation of the q-state Potts model on a planar graph was related to ratios of dual partition functions under fixed boundary conditions. It was claimed that the method employed could straightforwardly be applied to higher correlations as well; this is however not true. By explicitly considering the four-point correlation we demonstrate how the appearence of non-well-nested connectivities invalidates the method.
7 pages in RevTeX, no figures. Submitted to Phys. Lett. A

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/151783

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9705120
 http://arxiv.org/abs/cond-mat/9705120
 Phys. Lett. A 233, 489 (1997).

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arXiv