Smooth Supersonic Euler-Poisson Flows with Nonzero Vorticity in a Divergent Nozzle
数学学科创建110周年系列报告
报告题目(Title):Smooth Supersonic Euler-Poisson Flows with Nonzero Vorticity in a Divergent Nozzle
报告人(Speaker):王春朋 教授 (吉林大学)
地点(Place):后主楼1124
时间(Time):2025年4月9日下午4:00-5:00
邀请人(Inviter):许孝精
报告摘要
This talk concerns the structural stability of smooth radially symmetric supersonic Euler-Poisson flows in a divergent nozzle under perturbations of suitable boundary conditions. We establish the existence and uniqueness of a class of smooth supersonic flows with nonzero vorticity to the steady Euler-Poisson system. The result is obtained by utilizing the deformation-curl-Poisson decomposition to deal with the hyperbolic-elliptic mixed structure and combining the estimates for hyperbolic-elliptic system and the transport equations. This is a joint work with Dr. Zihao Zhang.
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,先后获得理学学士、理学硕士和理学博士学位。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。