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Название: The Asymmetric Six-Vertex Model
Автор: Nolden I.M.
The exact solution of the asymmetric six-vertex model, published nearly without derivation by Sutherland et al. in 1967, is rederived in detail. The transfer matrix method and the Bethe Ansatz solution for the free energy (which can be calculated from an integral equation) are discussed. For some special cases (zero or maximal polarization) the integral equation can be solved exactly. In addition, an asymptotic analysis, valid for small but nonzero polarization, is carried out. The analytical properties of the results and their relevance for the BCSOS model are discussed.