Canonicity of Baecklund transformation: r-matrix approach. I

E. K. Sklyanin

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Canonicity of Baecklund transformation: r-matrix approach. I

E. K. Sklyanin

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Abstract

For the Hamiltonian integrable systems governed by SL(2)-invariant r-matrix (such as Heisenberg magnet, Toda lattice, nonlinear Schroedinger equation) a general procedure for constructing Baecklund transformation is proposed. The corresponding BT is shown to preserve the Poisson bracket. The proof is given by a direct calculation using the r-matrix expression for the Poisson bracket.

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E. K. Sklyanin. 1999-03-25. Canonicity of Baecklund transformation: r-matrix approach. I. https://arxiv.org/abs/solv-int/9903016

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