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Published in 2021 at "Journal of Dynamics and Differential Equations"
DOI: 10.1007/s10884-021-09989-x
Abstract: This paper considers small perturbations of an integrable reversible system which has a degenerated lower dimensional invariant torus in some sense. In the presence of some higher-order terms, by some KAM technique and the stability…
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Keywords:
prescribed frequencies;
lower dimensional;
persistence degenerate;
reversible systems ... See more keywords
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Published in 2020 at "Regular and Chaotic Dynamics"
DOI: 10.1134/s1560354720060088
Abstract: It is known that under Kolmogorov’s nondegeneracy condition, the nondegenerate hyperbolic invariant torus with Diophantine frequencies will persist under small perturbations, meaning that the perturbed system still has an invariant torus with prescribed frequencies. However,…
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Keywords:
prescribed frequencies;
lower dimensional;
hyperbolic type;
type degenerate ... See more keywords