报告题目：A diffusive SIS epidemic model with saturated incidence function in a heterogeneous environment
报告摘要：In this talk, we are concerned with a diffusive SIS (susceptible-infected-susceptible) epidemic model in a spatiotemporally heterogeneous environment, where the incidence function is saturated given by $\frac{SI}{m+S+I}$ with $m\geq 0$ being a nonnegative function. Our results reveal that, compared to the SIS system with $m=0$, the transmission risk modelled by the system with $m>0$ is relatively lower, and the total population number can also play a decisive role in the dynamics of disease extinction and persistence, and moreover the spatial profile of the disease distribution may behave differently in certain circumstances. This talk is based on a joint work with Daozhou Gao (Shanghai Normal University) and Chengxia Lei (Jiangsu Normal University).
报告人简介：彭锐，江苏师范大学，教授，江苏省特聘教授，入选“教育部新世纪优秀人才支持计划”， 获得“江苏省杰出青年基金”和“江苏省数学成就奖”，入选江苏省“333人才工程”中青年学科带头人。博士毕业于东南大学和澳大利亚新英格兰大学，曾在加拿大纽芬兰大学AARMS和美国明尼苏达大学IMA（美国NSF资助）从事博士后工作, 德国“洪堡学者”获得者。彭锐教授目前的主要研究兴趣包括偏微分方程、动力系统理论以及在生物学、传染病学和化学反应等领域的应用。已在Annales de l'Institut Henri Poincaré C, Analyse non linéaire、Transactions AMS、JFA、SIAM JMA、SIAM JAM、CVPDE、JDE、JMB 等数学杂志发表学术论文多篇。
报告时间：2022年6月24日 14:00-15:30
报告地点：腾讯会议ID：993 406 457
主办单位：伟德国际1946源自英国
