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Remarks on local regularity of axisymmetric solutions to the 3D Navier-Stokes equations
Release time:2022-05-24 Hits:
Academic forum introduction:

报告题目:Remarks on local regularity of axisymmetric solutions to the 3D Navier-Stokes equations

报告人:张挺教授(浙江大学)

报告时间:2022年5月27日上午9点30分-11点00分

报告地点:腾讯会议:147-637-471

报告摘要:In this talk, we will present the recent progress on axisymmetric solution to the 3D Navier-Stokes equations. Moreover, we will give a new local regularity criteria. It is slightly supercritical and implies an upper bound for the oscillation of $\Gamma=r u^{\theta}$: for any $0< \tau<1$, there exists a constant $c>0$, $$|\Gamma(r,x_{3},t)|\leq N e^{-c\, |\ln r|^{\tau}},\ 0<r\leq \frac{1}{4}.$$ (Based on work with Hui Chen and Taipeng Tsai).

报告人简介:张挺,浙江大学数学科学学院教授,博士生导师。入选国家万人计划“青年拔尖人才支持计划”,教育部“新世纪优秀人才支持计划”,浙江省杰出青年科学基金项目获得者,浙江省“新世纪151人才工程”第二层次培养人员。长期从事流体力学偏微分方程(组)的数学理论研究,主持多项国家自然科学基金项目和省部级而项目,在可压缩与不可压缩Navier-StokesMHD方程、粘弹性流体力学方程等取得系列重要研究成果,发表在CMPARMASJMAIMRNJDE等国际期刊。