The Lissajous transformation II. Normalization
@article{Deprit1991TheLT, title={The Lissajous transformation II. Normalization}, author={A. Deprit and Antonio Elipe}, journal={Celestial Mechanics and Dynamical Astronomy}, year={1991}, volume={51}, pages={227-250} }
Normalization of a perturbed elliptic oscillator, when executed in Lissajous variables, amounts to averaging over the elliptic anomaly. The reduced Lissajous variables constitute a system of cylindrical coordinates over the orbital spheres of constant energy, but the pole-like singularities are removed by reverting to the subjacent Hopf coordinates. The two-parameter coupling that is a polynomial of degree four admitting the symmetries of the square is studied in detail. It is shown that the…
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