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The quadratic-form identity for constructing the Hamiltonian structure of integrable systems. (English) Zbl 1077.37045

MSC:
37K10 Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.)
17B80 Applications of Lie algebras and superalgebras to integrable systems
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