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Zbl 1198.34081
Zhang, Zhengqiu; Hou, Zhenting
Existence of four positive periodic solutions for a ratio-dependent predator-prey system with multiple exploited (or harvesting) terms. (English)
[J] Nonlinear Anal., Real World Appl. 11, No. 3, 1560-1571 (2010). ISSN 1468-1218

The authors investigate a non-autonomous ratio-dependent predator-prey model with exploited terms. By using coincidence degree theory, they establish the existence of at least four positive periodic solutions for the above model. A related paper is {\it S. Chakraborty, S. Pal} and {\it N. Bairagi}, Nonlinear Anal., Real World Appl. 11, No.~3, 1862--1877 (2010; Zbl 1198.34077).
[E. Ahmed (Mansoura)]

MSC 2000:: *34C60 Applications of qualitative theory of ODE
92D25 Population dynamics
34C25 Periodic solutions of ODE
47N20 Appl. of operator theory to differential and integral equations

Keywords: predator-prey model; ratio-dependent; multiple exploited terms; four positive periodic solutions; coincidence degree theory

Citations: Zbl 1198.34077

Cited in: Zbl 1198.34077

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