## Higher order corrections to adiabatic invariants of generalized slow-fast Hamiltonian systems    [PDF]

M. Avendaño-Camacho, J. A. Vallejo, Yu. Vorobiev
We present a coordinate-free approach for constructing approximate first integrals of generalized slow-fast Hamiltonian systems, based on the global averaging method on parameter-dependent phase spaces with \$\mathbb{S}^1 -\$symmetry. Explicit global formulas for approximate second-order first integrals are derived. As examples, we analyze the case quadratic in the fast variables (in particular, the elastic pendulum), and the charged particle in a slowly-varying magnetic field.
View original: http://arxiv.org/abs/1305.3974