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两种群时滞捕食-食饵系统周期解的存在性

Existence of Positive Periodic Solutions to a Predator-prey Delay System
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摘要 应用拓扑度理论讨论了一类具Holling-II型功能反应与收获项的两种群时滞捕食-食饵系统。利用延拓定理得到了系统存在正周期解的充分条件,推广了已有结论。 By using coincidence degree theory, existence oi positive periodic solution to a preuatorprcydelay system with Holling-type Ⅱ functional response and harvesting is investigated. By applying thecontinuation theorem of coincidence degree theory, we discuss the existence of positive periodic solutionssystem and also extend some known results.
出处 《合肥师范学院学报》 2014年第6期9-12,17,共5页 Journal of Hefei Normal University
基金 安徽省自然科学基金项目(1408085MA02) 安徽省高校自然科学基金重点项目(KJ2012A019) 安徽大学211项目(KYXL2012004 02303303-33030011 XJYJXKC04)
关键词 捕食-食饵系统 功能反应 收获项 时滞 周期解 predator-prey system Holling-type Ⅱ functional response harvesting delay periodic solu-tions
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参考文献7

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