Abstract
We study the peculiarities of irregular periodic orbits, i.e. orbits belonging to families not connected with the main families or their bifurcation, of Hamiltonian systems of two degrees of freedom. Families of irregular periodic orbits appear in triplets which are either closed or extend to infinity. If these triplets form an infinite sequence they surround an escape region. It seems probable that in general regions covered by irregular families are of high degree of stochasticity.
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Barbanis, B. Irregular periodic orbits. Celestial Mechanics 39, 345–364 (1986). https://doi.org/10.1007/BF01230482
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DOI: https://doi.org/10.1007/BF01230482