网站地图 | 联系我们  
首页 中心概况 新闻动态 科研进展 交流合作 人才培养 研究队伍 人才招聘 政策规章 数学交叉科学传播
学术报告
现在位置:首页 > 学术报告

Perthame-Souganidis mutation -selection model and extensions
【2017.7.20 4:20pm, N913】

【打印】【关闭】

 2017-07-18 

  Colloquia & Seminars 

  Speaker

Prof. Yuan Lou (Ohio State University and Renmin University of China) 

  Title

Perthame-Souganidis mutation -selection model and extensions

  Time

2017.07.20(星期四),16:20-17:20

  Venue

数学院南楼N913室

  Abstract

To study the evolution of conditional dispersal we extend the Perthame-Souganidis mutation-selection model and consider an integro-PDE model for a population structured by the spatial variables and one trait variable. We assume that both diffusion rate and advection rate are functions of the trait variable, which lies within a short interval I. Under proper conditions on the invasion fitness gradient, we show that in the limit of small mutation rate, the positive steady state will concentrate in the trait variable and forms a Dirac mass supported at one end of I,or a Dirac mass supported at the interior of I, or two Dirac masses supported at both ends of I. This is based on joint works with Wenrui Hao (Penn State) and King-Yeung Lam (Ohio State).

  Affiliation

 

欢迎访问国家数学与交叉科学中心 
地址:北京海淀区中关村东路55号 邮编:100190 电话: 86-10-62613242 Fax: 86-10-62616840 邮箱: ncmis@amss.ac.cn