张艳敏,王丹,刘明鼎.具有二阶扰动和疫苗接种的随机霍乱传染病模型的平稳分布[J].井冈山大学自然版,2021,42(3):1-7 |
具有二阶扰动和疫苗接种的随机霍乱传染病模型的平稳分布 |
STATIONARY DISTRIBUTION OF A STOCHASTIC CHOLERA EPIDEMIC MODEL WITH SECOND-ORDER PERTURBATION AND VACCINATION |
投稿时间:2021-01-24 修订日期:2021-03-10 |
DOI:10.3669/j.issn.1674-8085.2021.03.001 |
中文关键词: 随机霍乱传染病模型 二阶扰动 疫苗接种 平稳分布 Lyapunov函数 |
英文关键词: stochastic cholera epidemic model second-order perturbation vaccination stationary distribution Lyapunov function |
基金项目:山东省高等教育研究项目(19GDJ019);青岛理工大学琴岛学院重点研究项目(2020001A) |
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中文摘要: |
针对一类具有二阶扰动和疫苗接种的随机霍乱传染病模型,得到了一个关键条件R0S。然后利用随机Lyapunov分析法以及Itô公式,证明了当R0S>1时,随机霍乱传染病模型存在遍历平稳分布。因为模型具有二阶扰动,在证明中构造了新颖的随机Lyapunov函数。证明方法可以应用到类似的模型中。 |
英文摘要: |
For a class of stochastic cholera epidemic model with second-order perturbation and vaccination, a key condition R0S was obtained. Then, by using stochastic Lyapunov analysis method and Itô formula, it was proved that the stochastic cholera epidemic model had a unique ergodic stationary distribution when. R0S>1 Because the model had second-order disturbance, the novel stochastic Lyapunov functions were constructed in the proof. The proof method can be applied to similar models. |
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