Global structure of a kind of predator-prey system |
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Authors: | Ding Sun-hong |
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Institution: | Institute of Mathematical Sciences, Chengdu Branch, Academia Sinica, Chengdu |
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Abstract: | In this paper we prove a theorem, theorem 2, on nonexistence of closed trajectory for a general predator-prey system.Then, using this theorem and another theorem on existence and uniqueness of limit cycle for predator-prey system1], we complete the investigation of a concrete model of predator-prey system2] x=γx(1-x/K)-yxn/(a+xn) y=y(μxn/(a+xn)-D) (n=1,2) under the conditions of all kinds of parameters. |
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Keywords: | |
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