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Hamiltonian systems under small nonautonomous perturbations
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 1 (2012), pp. 47-53 Cet article a éte moissonné depuis la source Math-Net.Ru

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Hamiltonian systems under weak nonautonomous and nonperiodic perturbations are considered. Sufficient conditions under which the first integrals of the unperturbed system vary slightly along the solution of the perturbed system are formulated. Some mechanical systems are considered as examples. 
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     author = {I. Yu. Polekhin},
     title = {Hamiltonian systems under small nonautonomous perturbations},
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     url = {http://geodesic.mathdoc.fr/item/VMUMM_2012_1_a7/}
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I. Yu. Polekhin. Hamiltonian systems under small nonautonomous perturbations. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 1 (2012), pp. 47-53. http://geodesic.mathdoc.fr/item/VMUMM_2012_1_a7/

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