Solutions of minimal period for a class of nonconvex Hamiltonian systems and applications to the fixed energy problem

On critical point theory for indefinite functionals in the presence of symmetries

Vieri Benci · Transactions of the American Mathematical Society · 1982 · 301 citations · Full text

Natural Sciences, Mathematics, Critical Theory +16

On subharmonic solutions of hamiltonian systems

Paul H. Rabinowitz · Communications on Pure and Applied Mathematics · 1980 · 209 citations

Natural Sciences, Mathematics, Physics +12

Hamiltonian trajectories having prescribed minimal period

Frank H. Clarke, Ivar Ekeland · Communications on Pure and Applied Mathematics · 1980 · 170 citations

Natural Sciences, Mathematics, Dynamical Systems +10

On the Number of Periodic Trajectories for a Hamiltonian Flow on a Convex Energy Surface

Ivar Ekeland, Jean‐Michel Lasry · Annals of Mathematics · 1980 · 151 citations

Natural Sciences, Mechanical Engineering, Computational Mechanics +12

Solutions of minimal period for a class of convex Hamiltonian systems

Antonio Ambrosetti, G.B. John Mancini · Mathematische Annalen · 1981 · 84 citations

Natural Sciences, Mathematics, Dynamical Systems +10