摘要
给出了一类脉冲输入培养基的捕食者-食饵恒化器模型,获得了一个食饵(或捕食者)和培养基共存的正周期解,并且对这个周期解具有侵入阈值进行稳定性分析.当投放周期大于某个临界值时,这个周期解失去稳定性.
A simple model for a chemostat with predator-prey and periodically pulsed substrate is givem in this paper the exact periodic solutions with positive concantrations of substrate and prey (predator) is obtained,stability of solution which yields an invasion threbold is analysed. When the period is more than the critical value,the periodic solution loses its stability.
出处
《信阳师范学院学报(自然科学版)》
CAS
北大核心
2006年第2期132-134,190,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
supportedbytheNationalNaturalScienceFoundationofChina(No.10471117)
theHenanInnovationProjectforUniversityProminentResearchTalents(No.2005KYCX017)
theScientificResearchFoundationfortheReturnedOverseasChineseScholars,StateEducationMinistry