共 50 条
- [24] Existence of periodic solutions of sublinear Hamiltonian systems Acta Mathematica Sinica, English Series, 2016, 32 : 621 - 632
- [25] Periodic solutions of perturbed central Hamiltonian systems NODEA-NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS, 2019, 26 (05):
- [30] EXISTENCE OF PERIODIC SOLUTIONS FOR HAMILTONIAN SYSTEMS WITH SUPER-LINEAR AND SIGN-CHANGING NONLINEARITIES JOURNAL OF APPLIED ANALYSIS AND COMPUTATION, 2018, 8 (05): : 1524 - 1534