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2013 | OriginalPaper | Buchkapitel

Littlewood Problem for a Singular Subquadratic Potential

verfasst von : Xiong Li, Yingfei Yi

Erschienen in: Infinite Dimensional Dynamical Systems

Verlag: Springer New York

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Abstract

We consider a periodically forced singular oscillator in which the potential has subquadratic growth at infinity and admits a singularity. Using Moser’s twist theorem of invariant curves, we show the existence of quasiperiodic solutions. This solves the Littlewood problem on the boundedness of all solutions for such a system.

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Metadaten
Titel
Littlewood Problem for a Singular Subquadratic Potential
verfasst von
Xiong Li
Yingfei Yi
Copyright-Jahr
2013
Verlag
Springer New York
DOI
https://doi.org/10.1007/978-1-4614-4523-4_8