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On the Metric Stability and the Nekhoroshev Estimate of the Velocity of Arnold Diffusion in a Special Case of the Three-body Problem

On the Metric Stability and the Nekhoroshev Estimate of the Velocity of Arnold Diffusion in a... A study is made of the stability oftriangular libration points in the nearly-circularrestricted three-body problem in the spatial case.The problem of stability for most (in the sense of Lebesguemeasure) initial conditions in the planar casehas been investigated earlier. In the spatial case,an identical resonance takes place: for all values of the parameters of theproblem the period of Keplerian motion of the two mainattracting bodies is equal to the period of small linearoscillations of the third body of negligible massalong the axis perpendicular to the plane of the orbitof the main bodies. In this paper it is assumed that there are no resonances of theplanar problem through order six. Using classical perturbation theory, KAM theoryand algorithms of computer calculations, stability is proved for most initial conditionsand the Nekhoroshev estimate of the time of stability is given for trajectories startingin an addition to the above-mentioned set of most initial conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Regular and Chaotic Dynamics Springer Journals

On the Metric Stability and the Nekhoroshev Estimate of the Velocity of Arnold Diffusion in a Special Case of the Three-body Problem

Regular and Chaotic Dynamics , Volume 26 (4) – Aug 9, 2021

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References (36)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2021
ISSN
1560-3547
eISSN
1468-4845
DOI
10.1134/s1560354721040018
Publisher site
See Article on Publisher Site

Abstract

A study is made of the stability oftriangular libration points in the nearly-circularrestricted three-body problem in the spatial case.The problem of stability for most (in the sense of Lebesguemeasure) initial conditions in the planar casehas been investigated earlier. In the spatial case,an identical resonance takes place: for all values of the parameters of theproblem the period of Keplerian motion of the two mainattracting bodies is equal to the period of small linearoscillations of the third body of negligible massalong the axis perpendicular to the plane of the orbitof the main bodies. In this paper it is assumed that there are no resonances of theplanar problem through order six. Using classical perturbation theory, KAM theoryand algorithms of computer calculations, stability is proved for most initial conditionsand the Nekhoroshev estimate of the time of stability is given for trajectories startingin an addition to the above-mentioned set of most initial conditions.

Journal

Regular and Chaotic DynamicsSpringer Journals

Published: Aug 9, 2021

Keywords: restricted three-body problem; triangular libration points; stability; Arnold diffusion

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