应002资讯网郭玉坤副教授的邀请，西安交通大学数学与统计学院杨家青副教授将于近日在公司做一场线上学术讲座，报告内容为波动方程的反散射问题，以下是报告信息，欢迎感兴趣的师生参加。

时间：2020年7月14日上午10:00-11:00

平台：腾讯会议，会议ID：277 579 407，可点击链接直接加入会议：https://meeting.tencent.com/s/eEIClKzb8j8C

题目：Uniqueness and numerical algorithm for inverse scattering by rough surfaces with embedded obstacles

摘要：In this talk，we will present our recent developments on inverse acosutic scattering by bounded obstacles embedded in a two-layered medium which is separated by an unbounded rough surface. A global uniqueness theorem is proved for simultaneously recovering the rough surface and bounded obstacles from partial data measured only above the rough surface. A novel version on the LSM is then presented in the unbounded case to reconstruct the shape and location of the rough surface and embedded obstacles with different boundary conditions. Part of the work is also extended to the inverse elastic wave scattering by rough surfaces with embedded obstacles.

报告人简介：杨家青，西安交通大学副教授，博导。2012年博士毕业于中国科学院数学与系统科学学院；2012-2014年在中国科学院系统科学研究所做博士后；2014-2015年在香港中文大学做Research Fellow；2015年入职西安交通大学数学与统计学院，研究方向为反问题的数学理论与计算，在应用数学与计算数学领域的国际权威期刊 Inverse Problems, SIAM Journal on Numerical Analysis, SIAM Journal on Applied Mathematics, SIAM Journal on Imaging Sciences, Inverse Problems and Imaging, Journal of Differential Equations 等发表学术论文20余篇。