具有包含种群损失的离散矩阵的延迟种群补丁模型的动力学

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2023-02-03 DOI:10.1017/s0956792523000049
D. Huang, Shanshan Chen
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引用次数: 0

摘要

在本文中,我们考虑了一个具有延迟和补丁结构的一般单种群模型,该模型可以模拟扩散过程中的种群损失。结果表明,当扩散率小于临界值时,该模型允许一个独特的正平衡。研究了当扩散率很小或接近临界值时,正平衡和相关Hopf分岔的稳定性。此外,我们还展示了网络拓扑结构对延迟逻辑种群模型的Hopf分岔值的影响。
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Dynamics of a delayed population patch model with the dispersion matrix incorporating population loss
In this paper, we consider a general single population model with delay and patch structure, which could model the population loss during the dispersal. It is shown that the model admits a unique positive equilibrium when the dispersal rate is smaller than a critical value. The stability of the positive equilibrium and associated Hopf bifurcation are investigated when the dispersal rate is small or near the critical value. Moreover, we show the effect of network topology on Hopf bifurcation values for a delayed logistic population model.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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