
doi: 10.1007/bf01202105
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Inverse spectral and scattering methods for infinite-dimensional Hamiltonian and Lagrangian systems, Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.), General theory of ordinary differential operators, General spectral theory of ordinary differential operators, Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones)
Inverse spectral and scattering methods for infinite-dimensional Hamiltonian and Lagrangian systems, Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.), General theory of ordinary differential operators, General spectral theory of ordinary differential operators, Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones)
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