Threshold Dynamics and Competitive Exclusion in a Virus Infection Model with General Incidence Function and Density-Dependent Diffusion
Threshold Dynamics and Competitive Exclusion in a Virus Infection Model with General Incidence Function and Density-Dependent Diffusion
复制标题
具有一般发生函数和密度依赖扩散的病毒感染模型中的阈值动力学和竞争排除
DOI:
10.1155/2020/4923856
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发表时间:
2020-04
期刊:
影响因子:
2.3
通讯作者:
Yang Jianping
中科院分区:
文献类型:
--
作者:
Tang Xiaosong;Wang Zhiwei;Yang Jianping
In this paper, we investigate single-strain and multistrain viral infection models with general incidence function and density-dependent diffusion subject to the homogeneous Neumann boundary conditions. For the single-strain viral infection model, by using the linearization method and constructing appropriate Lyapunov functionals, we obtain that the global threshold dynamics of the model is determined by the reproductive numbers for viral infection . For the multistrain viral infection model, we have discussed the competitive exclusion problem. If the reproduction number for strain is maximal and larger than one, the steady state corresponding to the strain is globally stable. Thus, competitive exclusion happens and all other strains die out except strain . Meanwhile, we can prove that the single-strain and multistrain viral infection models are well posed. Furthermore, numerical simulations are also carried out to illustrate the theoretical results, which is seldom seen in the relevant known literatures.
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DOI:
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发表时间:
2018
期刊:
J. Math. Anal. Appl.
影响因子:
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DOI:
10.1073/pnas.93.9.4398
发表时间:
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影响因子:
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