本类热点
当前位置: 首页  通知公告
【理学·学术报告】Concentration phenomenon in reaction-diffusion epidemic models with mass action or nonlinear incidence mechanisms
[ 作者:陈珊珊 来源:理学院 浏览:205 录入时间:发布时间(2023年05月04日 ]

摘要:I will talk about my recent work on some reaction-diffusion epidemic models with mass action or nonlinear incidence mechanisms. I will discuss about the global boundedness and existence of solutions. The basic reproduction number $R_0$ will be defined, which will be proven to be a threshold parameter for disease extinction vs persistence. If $R_0>1$, the asymptotic profiles of the endemic equilibria will be investigated when the movement rates of susceptible or infected people are approaching zero. I will show that the infected people may concentrate on certain hot spots when the movement rates of infected people are limited. The hot spots will be characterized, and if the hot spots consist with a single point then the infected people concentrate as a Dirac Delta measure. Numerical simulations will be performed to illustrate the results.

 

报告时间:202358日(周一)上午10:00-11:30

报告地点:线上,腾讯会议号:932461199

 

 

报告人简介:

 

吴毅湘,于2010年在中南大学获得理学学士学位,于2015年在美国路易斯安那大学获得理学博士学位。20157月至20168月在加拿大西安大略大学从事博士后研究。20169月至20197月,任美国范德堡大学助理教授(non-tenure track)20198月,任美国中田纳西州立大学助理教授(tenure track)。研究兴趣主要是反应扩散方程和生物数学。已在SIMASIAPJMBJDENonlinearityJDDE等国际知名数学杂志上发表论文20余篇。

 

文章发布员:科技发展处
版权所有:哈尔滨工业大学(威海)理学院 电话:
CopyRight © 2011- All rights reserved Email:
[管理登陆]