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一类考虑双隔离强度的传染病模型的稳定性研究OA

Stability Study of a Class of Infectious Disease Models Considering Double Isolation Intensity

中文摘要英文摘要

为了研究双隔离强度对传染病传播的影响,建立一类具有双隔离强度的传染病模型.首先分析系统的正性和不变集,其次计算无病平衡点和基本再生数,之后计算唯一的地方病平衡点,并对无病平衡点和地方平衡点进行稳定性分析,从而确定疾病是否会消除.最后对基本再生数进行敏感性分析,说明增加隔离项可以控制疾病的蔓延.

In order to study the effect of double isolation intensity on the transmission of infectious diseases,a class of infectious disease models with double isolation intensity were established.Firstly,the positivity and invariant set of the system were analyzed,fol-lowed by the calculation of the disease-free equilibrium point and the basic regeneration number,after which the unique endemic equi-librium point was calculated and stability analysis was performed on the disease-free equilibrium point and the local equilibrium point to determine whether the disease would be eliminated.Finally,a sensitivity analysis was performed on the basic regeneration number,which illustrated that adding the isolation term could control the spread of the disease.

宋家城;吕王勇;张萍;张策;史思红

四川师范大学数学科学学院,四川成都 610066四川师范大学数学科学学院,四川成都 610066||四川师范大学可视化计算与虚拟现实四川省重点实验室,四川成都 610066海南师范大学数学与统计学院,海南海口 570311

数学

基本再生数双隔离强度稳定性平衡点基本再生数的敏感性分析

basic reproduction numberdouble isolation strengthstabilitybalance pointsensitivity analysis of basic regenera-tion number

《四川师范大学学报(自然科学版)》 2024 (002)

229-239 / 11

国家自然科学基金青年基金(11601357)、四川省科技厅应用基础项目(2017JY0159)、可视化计算与虚拟现实四川省重点实验室基金(SCVCVR2018.08VS)和海南省自然科学基金(120QN250)

10.3969/j.issn.1001-8395.2024.02.009

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