论文信息 - A variational principle for invariant tori of fixed frequency

A variational principle for invariant tori of fixed frequency

A fixed frequency Lagrangian variational principle is formulated for the invariant tori of conservative dynamical systems. It avoids the singularities due to small frequency divisors, and for pure rotation provides a strict bound which can be used as a basis for an effective variational method.

I. Percival

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