扩散型COVID-19模型的行波分析

Charles M. Wachira, G. O. Lawi, L. Omondi
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摘要

本文建立了一个基于非线性抛物型偏微分方程组的数学模型,研究了人类流动性对2019冠状病毒病(COVID-19)动力学的影响。证明了模型解的正性和有界性。给出了模型的无病平衡点、地方性平衡点和行波解的存在性。数值分析表明,人的流动性在疾病传播中起着至关重要的作用。因此,影响传播(人员流动)的干预措施,如封锁、旅行限制和停止行动,可能在控制和预防COVID-19的传播方面发挥重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Travelling Wave Analysis of a Diffusive COVID-19 Model
In this paper, a mathematical model based on a system of nonlinear parabolic partial differential equations is developed to investigate the effect of human mobility on the dynamics of coronavirus 2019 (COVID-19) disease. Positivity and boundedness of the model solutions are shown. The existence of the disease-free, the endemic equilibria, and the travelling wave solutions of the model are shown. From the numerical analysis, it is shown that human mobility plays a crucial role in the disease transmission. Therefore, interventions that affect diffusion (human mobility), such as lock-down, travel restrictions, and cessation of movement, may play a significant role in controlling and preventing the spread of COVID-19.
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