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Название: Corner Transfer Matrices of the Eight-Vertex Model. II. The Ising Model Case
Автор: Baxter R.J.
In a previous paper certain "corner transfer matrices" were defined. It was conjectured that for the zero-field, eight-vertex model these matrices have a very simple eigenvalue spectrum. In this paper these conjectures are verified for the case when the eight-vertex model reduces to two independent and identical square-lattice Ising models. The Onsager-Yang expression for the magnetization follows immediately.