On doubly symmetric periodic orbits
In this article, for Hamiltonian systems with two degrees of freedom, we study doubly symmetric periodic orbits, i.e., those which are symmetric with respect to two (distinct) commuting antisymplectic involutions. These are ubiquitous in several problems of interest in mechanics. We show that, in di...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 April 2023
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| In: |
Celestial mechanics and dynamical astronomy
Year: 2023, Jahrgang: 135, Heft: 2, Pages: 1-18 |
| ISSN: | 1572-9478 |
| DOI: | 10.1007/s10569-023-10135-6 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/s10569-023-10135-6
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| Verfasserangaben: | Urs Frauenfelder, Agustin Moreno |
MARC
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| 520 | |a In this article, for Hamiltonian systems with two degrees of freedom, we study doubly symmetric periodic orbits, i.e., those which are symmetric with respect to two (distinct) commuting antisymplectic involutions. These are ubiquitous in several problems of interest in mechanics. We show that, in dimension four, doubly symmetric periodic orbits cannot be negative hyperbolic. This has a number of consequences: (1) All covers of doubly symmetric orbits are good, in the sense of Symplectic Field Theory (Eliashberg et al. Geom Funct Anal Special Volume Part II:560-673, 2000); (2) a non-degenerate doubly symmetric orbit is stable if and only if its CZ-index is odd; (3) a doubly symmetric orbit does not undergo period doubling bifurcation; and (4) there is always a stable orbit in any collection of doubly symmetric periodic orbits with negative SFT-Euler characteristic (as coined in Frauenfelder et al. in Symplectic methods in the numerical search of orbits in real-life planetary systems. Preprint arXiv:2206.00627). The above results follow from: (5) A symmetric orbit is negative hyperbolic if and only its two B-signs (introduced in Frauenfelder and Moreno 2021) differ. | ||
| 650 | 4 | |a Celestial mechanics | |
| 650 | 4 | |a Hamiltonian dynamics | |
| 650 | 4 | |a Periodic orbits | |
| 650 | 4 | |a Symmetries | |
| 650 | 4 | |a Symplectic geometry | |
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