Reduction of the semisimple 1:1 resonance

Reduction of symplectic manifolds with symmetry

Jerrold E. Marsden, Alan Weinstein · Reports on Mathematical Physics · 1974 · 1.4K citations

Lie Point Symmetry, Symmetry (Physics), Symplectic Manifolds

Regularization of kepler's problem and the averaging method on a manifold

John W. Moser · Communications on Pure and Applied Mathematics · 1970 · 451 citations

Geometric Partial Differential Equation, Variational Analysis, Geometry +3

Oil constructing formal integrals of a Hamiltonian system near ail equilibrium point

Fred G. Gustavson · The Astronomical Journal · 1966 · 430 citations

Integral Geometry, Formal Integrals, Ail Equilibrium Point +8

On the Problem of Degeneracy in Quantum Mechanics

J. M. Jauch, E. L. Hill · Physical Review · 1940 · 359 citations · Full text

Hamiltonian Theory, Quantum Science, Engineering +11

On averaging, reduction, and symmetry in hamiltonian systems

Richard C. Churchill, Martin Kummer, David L. Rod · Journal of Differential Equations · 1983 · 118 citations

Hamiltonian Theory, Hamiltonian Systems, Hamiltonian System