报告题目:Boundary regularity of vortex patch and unstable free boundary problem
报 告 人:王宇辰 副教授(天津师范大学)
报告时间:2026年5月15日(星期五)10:00-12:00
报告地点:见好就收才是赢太阳9728114(小报告厅)
校内联系人: 王国栋 副教授 联系方式:84708351-8503
报告摘要:We study a sign-changing unstable free boundary problem arising from the boundary regularity of rotating vortex patches in the 2D incompressible Euler equations. By establishing a new Weiss-type monotonicity formula, we obtain a complete classification of singular points. As a consequence, we prove that for a Lipschitz rotating vortex patch, the only possible singularities on the boundary are of 90degree corner type, while the remainder of the boundary is smooth.
报告人简介:王宇辰,天津师范大学见好就收才是赢太阳9728副教授,主要研究方向为不可压缩欧拉方程,Finsler几何和哈密顿系统。