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Proof of a theorem of A. N. Kolmogorov on the invariance of quasi-periodic motions under small perturbations of the Hamiltonian. (English. Russian original) Zbl 0129.16606

Russ. Math. Surv. 18, No. 5, 9-36 (1963); translation from Usp. Mat. Nauk 18, No. 5(113), 13-40 (1963).

MSC:

70Hxx Hamiltonian and Lagrangian mechanics

Keywords:

mechanics
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