期刊
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
卷 -, 期 -, 页码 -出版社
AMER INST MATHEMATICAL SCIENCES-AIMS
DOI: 10.3934/dcds.2022074
关键词
Invariant curves; almost periodic reversible mappings; higher order degeneracy of the twist condition; KAM theory
资金
- National Natural Science Foundation of China [11901131]
- Guizhou Provincial Science and Technology Foundation [[2020] 1Y006]
This paper investigates the existence of invariant curves for almost periodic reversible mappings with higher order degeneracy of the twist condition. A new variant of the KAM theory, involving an artificial parameter q, 0 < q < 1, is used in the proof to ensure that the steps of the KAM iteration become infinitely small in the speed of function q(n)epsilon, rather than a super exponential function.
In this paper we are concerned with the existence of invariant curves for almost periodic reversible mappings with higher order degeneracy of the twist condition. In the proof we use a new variant of the KAM theory, containing an artificial parameter q, 0 < q < 1, which makes the steps of the KAM iteration infinitely small in the speed of function q(n)epsilon, rather than super exponential function.
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