东北师大学报(自然科学版)2024,Vol.56Issue(4) :1-10.DOI:10.16163/j.cnki.dslkxb202308120001

具有 Logistic 增长且含 Ornstein-Uhlenbeck过程和心理效应的随机SIRS传染病模型

A stochastic SIRS infectious disease model with Logistic growth and Ornstein-Uhlenbeck process and psychological effects

赵彦军 孙晓辉 苏丽 郝智超 李文轩
东北师大学报(自然科学版)2024,Vol.56Issue(4) :1-10.DOI:10.16163/j.cnki.dslkxb202308120001

具有 Logistic 增长且含 Ornstein-Uhlenbeck过程和心理效应的随机SIRS传染病模型

A stochastic SIRS infectious disease model with Logistic growth and Ornstein-Uhlenbeck process and psychological effects

赵彦军 1孙晓辉 1苏丽 1郝智超 1李文轩2
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作者信息

  • 1. 吉林外国语大学国际商学院,吉林长春 130117
  • 2. 吉林大学数学学院,吉林长春 130012
  • 折叠

摘要

研究了一类受环境噪声影响具有Logistic增长且含Ornstein-Uhlenbeck过程和心理效应的随机SIRS传染病模型.通过构造Lyapunov函数并利用Itô公式,证明了全局正解的存在唯一性.给出了决定疾病灭绝和持久的阈值——随机基本再生数Rs0,当Rs0<1时,疾病灭绝;当Rs0>1时,疾病持久;当Rs0=1时,通过基于停时的方法得到疾病灭绝.通过数值模拟验证了理论分析结果的正确性和疾病对心理效应的依赖性.

Abstract

A stochastic SIRS infectious disease model with Logistic growth and Ornstein-Uhlenbeck process and psychological effects is established.By constructing Lyapunov function and applying Itô's formula,the global existence and uniqueness of positive solution are proved.It is analytically made out the stochastic epidemic threshold Rs0 which pilots the extinction and permanence in mean of the disease.It is given that the disease extinguishes when Rs0<1.Othewise,if Rs0>1,then disease is permanent in mean.For the critical case Rs0=1,it has shown that disease dies out by using an approach involving some appropriate stopping times.A series of numerical simulations is presented to confirm the correctness of the theoretical analysis results and the dependence of disease on psychological effects.

关键词

Logistic增长/Ornstein-Uhlenbeck过程/心理效应/灭绝性/持久性

Key words

Logistic growth/Ornstein-Uhlenbeck process/psychological effects/extinction/permanence

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出版年

2024
东北师大学报(自然科学版)
东北师范大学

东北师大学报(自然科学版)

CSTPCD北大核心
影响因子:0.612
ISSN:1000-1832
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