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Zbl 1244.34116
Yu, Shengbin; Wu, Haihui; Chen, Jiangbin
Multiple periodic solutions of delayed predator-prey systems with type IV functional responses on time scales. (English)
[J] Discrete Dyn. Nat. Soc. 2012, Article ID 271672, 12 p. (2012). ISSN 1026-0226; ISSN 1607-887X/e

Summary: With the help of a continuation theorem based on Gaines and Mawhin's coincidence degree, easily verifiable criteria are established for the existence of multiple positive periodic solutions of delayed predator-prey systems with type IV functional responses on time scales. Our results not only unify the existing ones but also widen the range of applications.
MSC 2000:
*34N05
92D25 Population dynamics

Keywords: multiple periodic solutions; predator-prey systems; time scales

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