报告题目: Suppression of blow-up in Patlak-Keller-Segel-Navier- Stokes system via the Poiseuille flow
报 告 人: 向昭银 教授
工作单位: 电子科技大学
报告时间: 2022-11-15(周二) 8:30-11:30
腾讯会议ID: 794 364 7383
报告摘要:
In this talk, we investigate the two-dimensional Patlak-Keller-Segel-Navier-Stokes system perturbed around the Poiseuille flow $(Ay^2, 0)^\top$ and show that the solutions to this system are global in time if the Poiseuille flow is sufficiently strong in the sense of amplitude $A$ large enough. This seems to be the first result showing that the Poiseuille flow can suppress the chemotactic blow-up of the solution to chemotaxis-fluid system. Our proof will be based on a weighted energy method together with the linear enhanced dissipation established by Coti Zelati-Elgindi-Widmayer (Commun. Math. Phys. 378 (2020) 987-1010). This is a joint work with Dr H Li and Professor X Xu.
报告人简介:
向昭银,电子科技大学数学科学学院教授、博士生导师、副经理;2006年博士研究生毕业于四川大学;主要从事偏微分方程的研究,在 CPDE、Cal Var、IMRN、JFA、Math Z 等期刊上发表学术论文 70 余篇;先后主持国家自然科学基金、中国博士后科学基金、教育部留学回国人员科研启动基金等。