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具有脉冲反馈控制的捕食模型的动力复杂性 被引量:1

Complex Dynamics of a Predator-Prey Model with Impulsive State Feedback Control
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摘要 考虑了害虫综合管理策略的食饵依赖模型,即当害虫的数量达到经济危害阈值时,采用综合控制策略,如生物控制、放养控制、化学控制,以使害虫的数量达到可接受的水平.给出了Poincaré映射,得到了半平凡周期解的存在性,并利用类似Poincaré判据得到半平凡周期解稳定性的充分条件.最后,给出例子及数值模拟验证结论的正确性. In the paper,we consider a prey-dependent model with integrated pest management strategies,that is, when the pest population reaches the economic injury level,we use a combination tactics such as biological,cultural, and chemical control tactics such that pests reduce to a tolerable level.We obtain a Poincarémap.The existence of semi-trivial periodic solutions is given.The sufficient conditions for stability of semi-trivial periodic solutions are obtained by using the analogue of the Poincarécriterion.Finally,we give an example and numerical simulations to explain the mathematical conclusions.
出处 《河南大学学报(自然科学版)》 CAS 北大核心 2014年第3期267-272,共6页 Journal of Henan University:Natural Science
基金 国家自然科学基金(11201433 11201236) 河南省科技厅基础与前沿技术研究项目(112300410156 122300410117) 河南省教育厅自然科学研究项目(2011A110022) 河南省高校青年骨干教师项目(2013GGJS-110) 郑州轻工业学院青年骨干教师项目(2012XGGJS003) 郑州轻工业学院科研基金(2011XJJ014) 江苏高等教育委员会自然科学基金(11KJA110001 12KJB110012)
关键词 捕食-食饵模型 状态脉冲反馈控制 稳定性 predator-prey model impulsive state feedback control stability
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