Global action-angle coordinates for completely integrable systems with noncompact invariant submanifolds
E. Fiorani, G. Sardanashvily
Abstract
The obstruction to the existence of global action-angle coordinates of Abelian and noncommutative (non-Abelian) completely integrable systems with compact invariant submanifolds has been studied. We extend this analysis to the case of noncompact invariant submanifolds.
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