Department of Mathematical Sciences, Ritsumeikan University
Noji-higashi, Kusatsu, Shiga 525-8577, Japan
motonaga***fc.ritsumei.ac.jp
Dynamical systems, Hamiltonian systems /
Nearly integrable systems, Integrability criteriterion, Chaos, Melnikov analysis,
Ergodic optimization, Aubry-Mather theory, Weak KAM theory, Dissipative systems, Homoclinic orbits, Periodic orbits,
First integrals, Symmetry, Action-angle variables, Differential Galois theory, Morales-Ramis theory