Dynamics of a class of delayed reaction–diffusion systems with Neumann boundary condition

Dynamics of a class of delayed reaction–diffusion systems with Neumann boundary condition
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一类具有诺伊曼边界条件的延迟反应扩散系统的动力学

DOI:
10.1016/j.jmaa.2017.09.045
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发表时间:
2018-02
影响因子:
1.3
通讯作者:
Tao Wang
Tao Wang
中科院分区:
数学3区
文献类型:
--
作者:
Yanxiang Tan;Chuangxia Huang;Bo Sun;Tao Wang

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本文考虑了流行病学中出现的一类延迟反应扩散系统在诺伊曼边界条件下,能够描述细菌种群和人类感染种群的时空演化现象。利用区间映射的迭代性质和动力系统方法,详细分析了所考虑系统的一些正不变集和吸引盆地。此外,结合区间映射的全局吸引性,给出了系统稳态的局部或全局吸引性的充分条件。最后,我们将这些理论结果应用到具有不同非线性的“感染力”模型中,得到了描述细菌和感染群体生存与灭绝的“感染力”的一些充分条件。
This paper considers a class of delayed reaction–diffusion systems under the Neumann boundary condition which arise in epidemiology and can describe the temporal and spatial evolutionary phenomena for the bacteria population and the human infective population. With the help of the iterative properties of interval mapping and dynamical system approaches, some positively invariant sets and attractive basins of the considered systems are analyzed detailedly. In addition, combining the global attractivity of interval mapping, we provide some sufficient conditions to ensure local or global attractivity of steady states of the systems. Finally, we apply these theoretical results to some models with different nonlinearity demonstrating “force of infection”, and then obtain some sufficient conditions about “force of infection” to describe the survival and extinction of bacteria and infective populations.
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期刊: Zeitschrift für angewandte Mathematik und Physik
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