Hongxiang Yang, Xi-Xiang Xu
Abstract
A direct method for constructing integrable expanding models for discrete systems is developed through enlarging the associated Lax pairs. As illustrative examples, the procedures for the Toda lattice and a new lattice soliton system of a rational type are discussed. PACS numbers: 02.30.Ik, 02.90.+p I.
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A direct method for constructing integrable expanding models for discrete systems is developed through enlarging the associated Lax pairs. As illustrative examples, the procedures for the Toda lattice and a new lattice soliton system of a rational type are discussed. PACS numbers: 02.30.Ik, 02.90.+p I.
Key concepts: Integrable system, Toda lattice, Lax pair, Lattice (music), Soliton, Pure mathematics, Mathematics, Algebra over a field