On the Kolmogorov theorem for some infinite-dimensional Hamiltonian systems of short range

نویسندگان

چکیده

In this paper, it is proved that the infinite KAM torus with prescribed frequency exists in a sufficiently small neighbourhood of given I0 for nearly integrable and analytic Hamiltonian system H(I,θ)=H0(I)+ϵH1(I,θ) degree freedom short range. That to say, we will give an extension original Kolmogorov theorem infinite-dimensional case The proof based on approximation finite-dimensional improved machinery which works normal form depending only initial I0.

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ژورنال

عنوان ژورنال: Nonlinear Analysis-theory Methods & Applications

سال: 2021

ISSN: ['1873-5215', '0362-546X']

DOI: https://doi.org/10.1016/j.na.2020.112120