报告人：王春朋（吉林大学）

邀请人：雷远杰

报告时间：2022年1月5日（星期三）14:00-15:30

报告地点：腾讯会议 555 224 340

报告题目：Degenerate Elliptic Equations and Subsonic-sonic Flows in General Nozzles

报告摘要：This talk concerns subsonic-sonic potential flows in two dimensional nozzles, which are governed by nonlinear degenerate elliptic equations. For finitely long symmetric nozzles, it is shown that there exists a unique Lipschitz continuous subsonic-sonic flow, and the location of sonic points is classified completely.

报告人简介：王春朋，吉林大学数学学院教授、博士生导师，主要从事退化抛物方程和椭圆-双曲混合型偏微分方程方面的研究，在国际重要期刊Arch. Ration. Mech. Anal.、SIAM J. Math. Anal.、Comm. Partial Differential Equations、J. Differential Equations等杂志上发表SCI论文40余篇。