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时间测度上具有时滞的非线性食饵-竞争系统的周期解 被引量:2

Periodic Solution for a Delayed Nonlinear Prey-Competition System on Time Scales
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摘要 在时间测度上研究了具有时滞的非线性食饵-竞争系统,利用重合度理论中的延拓定理讨论了此系统周期解的存在性问题,得到了保证周期解存在的充分条件,从而使这一类系统的连续与离散情形即相应的微分方程和差分方程的周期解存在性问题得到了统一研究. The existence of periodic solutions of a nonlinear prey-competition system with delays on time scales is explored.Based on the continuation theorem of coincidence degree,a set of sufficient conditions ensuring the existence of positive periodic solutions of the system are obtained.Therefore,the study of periodic solutions for the continuous differential equations and discrete difference equations are unified.
作者 鲁红英
出处 《内蒙古大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第3期247-252,共6页 Journal of Inner Mongolia University:Natural Science Edition
基金 国家自然科学基金资助项目(70901016) 辽宁省高等学校优秀人才支持计划(2008RC15) 科技部创新方法专项资助项目(No.2009IM010400-1-39)
关键词 时间测度 非线性 时滞 周期解 重合度 time scale nonlinear delay periodic solution coincidence degree
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参考文献12

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