Abstract
For each given \(n \ge 2\), we study the variational existence of a new spatial periodic orbit in the 2n-body problem. Besides excluding possible collision singularities, the main challenges left are to show that the orbit is not a relative equilibrium and it is spatial. By introducing a new estimate in the collinear central configuration, we can prove that it is not a relative equilibrium in the 2n-body problem. Furthermore, with the help of numerical calculation, the orbit is spatial in the equal-mass four-body problem.
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The research of Wentian Kuang is supported by NSFC (No. 11901279) and China Postdoctoral Science Foundation (No. 2019M660970). The research of Duokui Yan is supported by NSFC (No. 11871086)
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Kuang, W., Ouyang, T. & Yan, D. A Symmetric Spatial Periodic Orbit in the 2n-Body Problem. J Dyn Diff Equat 33, 1605–1614 (2021). https://doi.org/10.1007/s10884-020-09869-w
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DOI: https://doi.org/10.1007/s10884-020-09869-w