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具有猎物避难所和HollingⅡ型功能反应函数的离散捕食者-食饵模型的分岔分析

Bifurcation Analysis of a Discrete Predator-Prey Model with Prey Refuge and Holling II Functional Response Function
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摘要 考虑一类具有猎物避难所和HollingⅡ型功能反应函数的离散模型.选取参数,利用中心流形定理和分岔理论,阐述模型在正平衡点处存在Flip分岔和Neimark-Sacker分岔,展示模型的动力学行为.最后进行数值模拟验证理论结果的有效性. A discrete model with prey refuge and Holling type II functional response function is considered.By selecting parameters,using the center manifold theorem and bifurcation theory,the existence of Flip bifurcation and Neimark-Sacker bifurcation at the positive equilibrium point of the model is expounded,and the dynamic behavior of the model is demonstrated.
作者 张佩雪 牛利娟 庞茹一 ZHANG Peixue;NIU Lijuan;PANG Ruyi(School of Science,Xi’an Polytechnic University,Xi’an Shaanxi 710048,China)
出处 《新疆大学学报(自然科学版)(中英文)》 CAS 2024年第1期12-19,共8页 Journal of Xinjiang University(Natural Science Edition in Chinese and English)
基金 国家自然科学基金面上项目“变区域上具时滞扩散传染病模型的动力学研究”(12271421) 陕西省青年科技新星人才项目“生物模型自由边界问题的全局动力学”(2023KJXX-056).
关键词 猎物避难所 HollingⅡ型功能反应函数 离散模型 Flip分岔 NEIMARK-SACKER分岔 prey refuges Holling type II functional response function discrete model Flip bifurcation Neimark-Sacker bifurcation
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