Korteweg-de Vries equation: A completely integrable Hamiltonian system

1972 ◽  
Vol 5 (4) ◽  
pp. 280-287 ◽  
Author(s):  
V. E. Zakharov ◽  
L. D. Faddeev
2004 ◽  
Vol 01 (03) ◽  
pp. 167-183 ◽  
Author(s):  
EMANUELE FIORANI

Action-angle coordinates are shown to exist around an instantly compact invariant submanifold of a time-dependent completely integrable Hamiltonian system. Partially integrable Hamiltonian systems are also considered in the noncompact case; a comparison is made with other possible approaches. Results on symplectically complete foliations contained in the Appendix A can be used to give alternative proofs of some propositions.


Supplemental invariant Poisson structures P c which are incompatible with the original Poisson structure P 1 are discovered for an arbitrary completely integrable Hamiltonian system. For the non-degenerate case, the complete classification of the invariant Poisson structures P c is obtained provided that the invariant submanifolds of the integrable Hamiltonian system are compact. The instability of the property of compatibility of any supplemental invariant non-degenerate Poisson structure P 2 with P 1 is established.


2003 ◽  
Vol 171 ◽  
pp. 127-161 ◽  
Author(s):  
Shingo Kawai

AbstractWe consider isomonodromic deformations of second-order Fuchsian differential equations on elliptic curves. The isomonodromic deformations are described as a completely integrable Hamiltonian system.


2014 ◽  
Vol 25 (02) ◽  
pp. 1450016 ◽  
Author(s):  
UGO BRUZZO ◽  
PETER DALAKOV

Donagi and Markman (1993) have shown that the infinitesimal period map for an algebraic completely integrable Hamiltonian system (ACIHS) is encoded in a section of the third symmetric power of the cotangent bundle to the base of the system. For the ordinary Hitchin system the cubic is given by a formula of Balduzzi and Pantev. We show that the Balduzzi–Pantev formula holds on maximal rank symplectic leaves of the G-generalized Hitchin system.


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