
doi: 10.1063/1.524872
It is shown that when a completely integrable Hamiltonian system is perturbed about a particular solution the resulting equations to all orders are completely integrable Hamiltonian systems. Numerous examples are worked out and some new constants for the original system are obtained.
Hamilton's equations, Completely integrable finite-dimensional Hamiltonian systems, integration methods, integrability tests, Nonlinear dynamics in mechanics, KdV hierarchy, Partial differential equations of mathematical physics and other areas of application, perturbation equations, Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.), Initial value problems for linear higher-order PDEs, Toda lattice, Higher-order parabolic equations
Hamilton's equations, Completely integrable finite-dimensional Hamiltonian systems, integration methods, integrability tests, Nonlinear dynamics in mechanics, KdV hierarchy, Partial differential equations of mathematical physics and other areas of application, perturbation equations, Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.), Initial value problems for linear higher-order PDEs, Toda lattice, Higher-order parabolic equations
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