1. ausgehend vom Ansatz Wolfhart Pannenbergs.
   作者声明: George Augustin ;
2. The Bethe ansatz equations are obtained from the periodic boundary conditions.The results show that this system is also completely integrable.
   【摘要】： 正 The exact eigenstates of the Hamiltonian of the mixed-valence lattice model are constructed by using the Bethe ansatz.

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