In this paper, we prove the existence of periodic solutions of a delayed periodic predator-prey system based on continuation theorem of coincidence degree.
Submitted July 8, 2007. Published November 21, 2007.
Math Subject Classifications: 34C25, 92D25.
Key Words: Time scales; solution; Fixed-point theorem; predator-prey system; coincidence degree theorem.
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| Dandan Yang |
Department of Mathematics
Yangzhou 225002, China
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