一类具有时滞的比率依赖型捕食者-食饵系统周期正解的存在性
일류구유시체적비솔의뢰형포식자-식이계통주기정해적존재성
Existence of postitive periodic solution of a ratio-dependent predator-prey system with time delays
  • 万方数据
    纯粹数学与应用数学 순수수학여응용수학
    PURE AND APPLIED MATHEMATICS
    2006年 1期 111-117 ,共7页

    丁孝全%程述汉

    정효전%정술한

    捕食者-食饵系统%时滞%周期解%重合度 捕食者-食餌繫統%時滯%週期解%重閤度
    포식자-식이계통%시체%주기해%중합도
    predator-prey system%time delay%periodic solution%coincidence degree
    考虑一类具有时滞的比率依赖型捕食者-食饵系统,利用重合度理论中的延拓定理,得到系统存在正周期解的充分条件.
    고필일류구유시체적비솔의뢰형포식자-식이계통,이용중합도이론중적연탁정리,득도계통존재정주기해적충분조건.
    A periodic ratio-dependent predator-prey system with time delays is investigated. By using a continuation theorem based on coincidence degree theory, the conditions for the existence of periodic solution of the system are obtained.
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