共 50 条
- [21] The Clark dual and multiple periodic solutions of delay differential equations Boundary Value Problems, 2011
- [22] CONSTRUCTION OF CONDITIONALLY-PERIODIC SOLUTIONS OF CANONICAL SYSTEMS OF DIFFERENTIAL-EQUATIONS WITH MULTIPLE RESONANCE CELESTIAL MECHANICS, 1982, 27 (02): : 179 - 189
- [23] POSITIVE PERIODIC SOLUTIONS FOR SYSTEMS OF IMPULSIVE DELAY DIFFERENTIAL EQUATIONS DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B, 2023, 28 (01): : 170 - 196
- [25] Periodic solutions of Hamiltonian partial differential equations BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2004, 7B (03): : 647 - 661
- [27] An Improved Oscillation Result for a Class of Higher Order Non-canonical Delay Differential Equations Mediterranean Journal of Mathematics, 2023, 20
- [29] Periodic solutions for nonautonomous first order delay differential systems via Hamiltonian systems ADVANCES IN DIFFERENCE EQUATIONS, 2015,
- [30] Periodic solutions for nonautonomous first order delay differential systems via Hamiltonian systems Advances in Difference Equations, 2015