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Integrable systems and zero-curvature equations. (Spanish. English summary) Zbl 0696.58020

Summary: We consider the construction of integrable systems analogous to the equations of the Korteweg-de Vries type and others. We analyze the zero- curvature equations in the Lie bialgebra associated to a Yang-Baxter equation. It is shown that those equations may be solved in terms of a Riemannian-Hilbert problem of the appropriate Lie group.

MSC:

37J35 Completely integrable finite-dimensional Hamiltonian systems, integration methods, integrability tests
37K10 Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.)
35Q99 Partial differential equations of mathematical physics and other areas of application