Keywords: seminar on differential equations and theory of integration seminarondifferentialequationsandtheoryofintegration mathematics seminar institute of mathematics as cr instituteofmathematicsascr as cr ascr matematický ústav av čr matematickýústavavčr An Tianqing (Hohai University, Nanjing, China): Periodic solutions of Hamiltonian systems with prescribed energy (23.4.2015) An Tianqing (Hohai University, Nanjing, China): Periodic solutions of Hamiltonian systems with prescribed energy (23.4.2015) |