Communications on Pure and Applied Mathematics · 1977 · 74 citations · 8 references
Natural SciencesMathematicsPhysicsDynamical SystemsGeometryMathematical PhysicsClassical MechanicsHamiltonian MechanicsHamiltonian SystemsPeriodic OrbitsRiemannian GeometrySymplectic GeometryGeometric MechanicsInvariant Manifolds Of Periodic OrbitsPeriodic Orbits In Hamiltonian SystemsRiemannian MetricStable Periodic OrbitsSymplectic Forms
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Normal modes for nonlinear hamiltonian systems
Alan Weinstein · Inventiones mathematicae · 1973 · 378 citations
T. J. Willmore · Journal of the London Mathematical Society · 1969 · 211 citations