报告题目 (Title): Global solution of 3-D Keller-Segel model with Couette flow in whole space
(三维全空间带有Couette流的Keller-Segel方程解的整体存在性)
报告人 (Speaker):王维克 教授(上海交通大学)
报告时间 (Time):2025年11月7日(周五)14:00
报告地点 (Place):校本部GJ303
邀请人(Inviter):王宇澄
主办部门:理学院数学系
报告摘要:We introduce both parabolic-elliptic Keller-Segel model and parabolic-parabolic Keller-Segel model in the background of a Couette flow with spatial variables in R^3. It is proved that for both parabolic-elliptic and parabolic-parabolic cases, a Couette flow with a sufficiently large amplitude prevents the blow-up of solutions. Here, we apply Green’s function method to capture the suppression of blow-up and prove the global existence of the solutions.