数学物理学报 ›› 2024, Vol. 44 ›› Issue (1): 209-226.

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具有非局部感染和周期治疗的HIV感染模型的时空动力学分析

吴鹏1,2,*(),何泽荣3   

  1. 1.杭州电子科技大学理学院 杭州 310018
    2.浙江财经大学数据科学学院 杭州 310018
    3.杭州电子科技大学运筹与控制研究所 杭州 310018
  • 收稿日期:2022-11-07 修回日期:2023-10-07 出版日期:2024-02-26 发布日期:2024-01-10
  • 通讯作者: 吴鹏, E-mail:hzpengwu@163.com
  • 基金资助:
    国家自然科学基金(12201557);国家自然科学基金(12201007);国家自然科学基金(11871185);浙江省教育厅一般项目(Y202249921);安徽省自然科学基金(2108085MA10)

Spatio-temporal Dynamics of HIV Infection Model with Periodic Antiviral Therapy and Nonlocal Infection

Wu Peng1,2,*(),He Zerong3   

  1. 1. School of Sciences, Hangzhou Dianzi University, Hangzhou 310018
    2. School of Data Sciences, Zhejiang University of Finance and Economics, Hangzhou 310018
    3. Institute of Operational Research and Cybernetics, Hangzhou Dianzi University, Hangzhou 310018
  • Received:2022-11-07 Revised:2023-10-07 Online:2024-02-26 Published:2024-01-10
  • Supported by:
    NSFC(12201557);NSFC(12201007);NSFC(11871185);Foundation of Zhejiang Provincial Education Department(Y202249921);Anhui Provincial Natural Science Foundation(2108085MA10)

摘要:

该文建立了一类非自治反应扩散 HIV 细胞模型来研究周期治疗、非局部感染对 HIV 感染时空动力学的影响. 具体地, 首先推导出模型基本再生数$\mathcal{R}_0$, 其由下一代再生算子$\mathcal{R}$的谱半径所定义. 然后对模型的动力学行为进行分析, 其中包括无感染平衡态的全局稳定性、HIV 感染的一致持久性以及周期正平衡态的存在性. 最后, 通过数值模拟验证了理论结果的正确性并分析了相关重要因素对 HIV 感染进程的影响, 为 HIV 的临床治疗提供有价值的参考建议.

关键词: HIV, 反应扩散模型, 空间异质, 非局部感染, 周期抗病毒治疗, 阈值动力学

Abstract:

In this paper, a non-autonomous reaction-diffusion HIV cell model is established to study the effects of periodic antiviral therapy, non local infection and spatial heterogeneity on HIV infection spatio-temporal dynamics. Specifically, we derive the functional expression of the basic regeneration number of the model$\mathcal{R}_0$, which is defined by the spectral radius of the next generation regeneration operator$\mathcal{R}$. Then the dynamical behaviors of the model is analyzed, including the global stability of the HIV infection-free steady state, the uniform persistence of HIV infection and the existence of periodic positive steady state. Finally, we conduct some numerical simulations to verify the theoretical results, and study the influence of relevant important factors on the process of HIV infection. Our works can provide some valuable reference suggestions for the clinical treatment of HIV infection.

Key words: HIV, Reaction-diffusion model, Spatial heterogeneity, Nonlocal infection, Periodic antiviral therapy, Threshold dynamics

中图分类号: 

  • O175.23