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Examples of Aubry sets. (English) Zbl 1090.37047

Towards so far unpublished results concerning orbits in certain Langrangian systems, the author considers so-called Aubry qoutient sets, introduced in [Commun. Pure Appl. Math. 56, 1178–1183 (2003; Zbl 1046.37039)] by the author, which help to construct orbits by minimization in case of time-periodic Lagrangians. The main result provides examples for Lagrangians with quotient Aubry sets that are isometric to a closed interval. In addition, the author gives an example for which the Aubry set is not upper-semicontinuous in the Lagrangian.

MSC:

37J50 Action-minimizing orbits and measures (MSC2010)
37J40 Perturbations of finite-dimensional Hamiltonian systems, normal forms, small divisors, KAM theory, Arnol’d diffusion

Citations:

Zbl 1046.37039
Full Text: DOI