Mathematics – Functional Analysis
Scientific paper
2007-03-23
Condens. Matter Phys., 2011, vol. 14, No. 2, 23003:1-11
Mathematics
Functional Analysis
11 pages, 3 figures. Published version with title changed
Scientific paper
10.5488/CMP.14.23003
In the present paper we study a phase transition problem for the Potts model with three competing interactions, the nearest neighbors, the second neighbors and triples of neighbors and non-zero external field on Cayley tree of order two. We prove that for some parameter values of the model there is phase transition. We reduce the problem of describing by limiting Gibbs measures to the problem of solving a system of nonlinear functional equations. We extend the results obtained by Ganikhodjaev and Rozikov [Math. Phys. Anal. Geom., 2009, 12, No. 2, 141-156] on phase transition for the Ising model to the Potts model setting.
Akin Hasan
Temir Seyit
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