中山大学郏宣吉副研究员将于近日在公司作线上学术讲座。以下是报告信息，欢迎感兴趣的师生参加。

时间：2020年7月1日（星期三） 15:00-16:00

题目：Global mild solutions to the Boltzmann equation in exterior domains

摘要：In the past decades, there have been an extensive studies on the close-to-equilibrium well-posedness theory for the Boltzmann equation in the whole space or on the torus. On the other hand, most of the physical models have boundaries so that the study on the boundary effect has its importance both in mathematics and physics. Although some important progresses have been made recently for the bounded domain case, much less has been known for the exterior domain case, due to the complicated boundary effect and the lack of a nice time decay estimate for the semigroup generated by the linear Boltzmann operator.

In this talk, we will introduce our recent work on the global mild solutions to the Boltzmann equation in exterior domains with Grad's cutoff hard potential and under general boundary conditions. We emphasize that the solution spaces in our work include the three dimensional case which is physically relevant.

报告平台：腾讯会议，

点击链接直接加入会议：

https://meeting.tencent.com/s/gPx53UZQZHpH

会议ID：839 188 816

会议密码：200701

报告人简介：郏宣吉博士，毕业于香港城市大学数学系，现任中山大学副研究员，主要从事非线性偏微分方程的理论研究，特别是玻尔兹曼方程的相关数学理论。目前已在Journal of Differential Equations, Nonlinearity等杂志发表学术论文10余篇。