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Geometric discretisation of the Toda system. (English) Zbl 1044.37527
Summary: The Laplace sequence of discrete conjugate nets is constructed. The invariants of the nets satisfy, in full analogy to the continuous case, a system of difference equations equivalent to Hirota’s discretisation of the generalized Toda equation.

37K10 Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.)
39A12 Discrete version of topics in analysis
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