讲座题目:Analyticity up to the boundary for the Prandtl and Navier-Stokes equations
主 讲 人:李维喜 教授(武汉大学)
讲座时间:2025年5月12日(周一) 10:30-11:30
讲座地点:2B-408
讲座摘要:We study the two-dimensional and three-dimensional Prandtl and Navier-Stokes equations in the half-space, and obtain the space-time analyticity of solutions to these equations. The analyticity estimates are local in time variable and global in space variable up to the boundary, with the lower bound of analyticity radii agreeing with that for the classical heat equation. The space-time analytic smoothing effect holds true for the Navier-Stokes equations with finite Sobolev regular initial data, and for the Prandtl equations with initial data real-analytic in tangential direction. The proof is based on direct energy estimate.
主讲人简介:李维喜,武汉大学数学与统计学院教授、博士生导师;主要从事偏微分方程的研究,在流体力学方程的边界层理论、退化椭圆方程的正则性以及谱分析等方面做出了一系列工作。研究成果发表在Comm. Pure Appl. Math.、 J. Eur. Math. Soc.、Adv.Math. 等国际著名期刊上。曾主持国家杰出青年基金、国家优秀青年基金、霍英东教育基金、国际(地区)合作与交流项目等国家基金项目,作为主要参与人获教育部自然科学奖一等奖。