On the existence of periodic solutions for nonlinear system with multiple delays
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Abstract
The existence of T-periodic solutions of the nonlinear system with multiple delays is studied. By using the topological degree method, sufficient conditions are obtained for the existence of T-periodic solutions. As an application, the existence of positive periodic solution for a logarithmic population model is established under some conditions.
Key words
multiple delays periodic solution topological degreeChinese Library Classification
O175.122000 MR Subject Classification
34C25Preview
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© Editorial Committee of Applied Mathematics and Mechanics 2003