Asymptotic behavior and well-posedness of subsonic-sonic flows in infinitely long nozzles
报告题目(Title)：Asymptotic behavior and well-posedness of subsonic-sonic flows in infinitely long nozzles
报告人(Speaker)：王春朋 教授（吉林大学数学学院）
地点(Place)：后主楼1124
时间(Time)：2026年4月17日（周五）15:00-16:00
邀请人(Inviter)：许孝精
报告摘要
This talk concerns subsonic-sonic potential flows in two dimensional infinitely long nozzles, which are governed by degenerate elliptic equations. Firstly, the a priori asymptotic behavior at the infinity for any subsonic-sonic flow is shown. Then it is proved that this problem admits a unique Lipschitz continuous subsonic-sonic flow. Furthermore, the location of sonic points is classified completely.
主讲人简介
王春朋，现为吉林大学数学学院院长、教授、博士生导师。他于1994年进入吉林大学数学系学习，先后获得学士、硕士和博士学位。王春朋主要从事偏微分方程的研究，特别是在具退化性和其他奇性的拟线性抛物型偏微分方程领域取得了显著成就。曾获得国家杰出青年科学基金、国家优秀青年科学基金、教育部自然科学奖二等奖等多项荣誉。他的博士论文被评为全国优秀百篇博士学位论文，并在Arch. Ration. Mech. Anal.、SIAM J. Math. Anal.等知名学术期刊上发表了多篇论文。此外，他还获得了国务院政府特殊津贴、宝钢优秀教师奖等荣誉。
