Abstract:
We consider the problem of stability of equilibrium points in Hamiltonian systems of two degrees of freedom under low order resonances. For resonances of order bigger than two there are several results giving stability conditions, in particular one based on the geometry of the phase flow and a set of invariants. In this paper we show that this geometric criterion is still valid for low order resonances, that is, resonances of order two and resonances of order one. This approach provides necessary stability conditions for both the semisimple and non-semisimple cases, with an appropriate choice of invariants.
Keywords:
nonlinear stability, resonances, normal forms.
Citation:
Víctor Lanchares, Ana I. Pascual, Antonio Elipe, “Determination of Nonlinear Stability for Low Order Resonances by a Geometric Criterion”, Regul. Chaotic Dyn., 17:3-4 (2012), 307–317
\Bibitem{LanPasEli12}
\by V{\'\i}ctor Lanchares, Ana I. Pascual, Antonio Elipe
\paper Determination of Nonlinear Stability for Low Order Resonances by a Geometric Criterion
\jour Regul. Chaotic Dyn.
\yr 2012
\vol 17
\issue 3-4
\pages 307--317
\mathnet{http://mi.mathnet.ru/rcd404}
\crossref{https://doi.org/10.1134/S1560354712030070}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=2956225}
\zmath{https://zbmath.org/?q=an:1256.34044}
\adsnasa{https://adsabs.harvard.edu/cgi-bin/bib_query?2012RCD....17..307L}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84865557157}
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https://www.mathnet.ru/eng/rcd404
https://www.mathnet.ru/eng/rcd/v17/i3/p307
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