Abstract:
By making use of topological
degree theory for Poincáre map established in [1], we
obtain the existence of periodic solutions for a class of
non-autonomous differential delay equations, which can be
transformed to planer Hamiltonian systems.
Key Words: Periodic solutions, differential delay
equations, topological degree.
2000 Mathematics Subject Classification: Primary: 34C25;
Secondary: 37J45.
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