المستخلص: |
An hamiltonian system is the given of a triple (M, w, H), where (M, w) is a symplectic manifold (of dimension 2n) and H is a smooth function on M. The system is said to be integrable if there exists a n-uplet F = (f1, f2,…, fn) of first integrals in involution whose differentials are generically independent. Arnold-Liouville’s Theorem asserts that if the moment map F is proper and regular then its fibers are tori (a Lagrangian fibration) and there exist action-angle coordinates that linearize the hamiltonian system. We are interested in the construction of Lagrangian fibrations associated with integrable systems and ideas that are behind the Arnold-Liouville theorem and its demonstration.
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