Rong Cheng and Jianhua Hu : Topological degree for periodic solutions of non-autonomous differential delay equations, p.55-63

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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