报告题目：Recovering the elastic moment tensor sources by a direct imaging method
报 告 人：郭玉坤教授（哈尔滨工业大学）
报告时间：2023年9月19日下午14:00开始
报告地点：腾讯会议ID：597-780-483
报告摘要：In this talk, we will investigate an inverse source problem of the time-harmonic elastic wave equation. Some novel sampling-type numerical schemes will be presented to identify the moment tensor point sources in the Lamé system from near-field measurements. Mathematical justifications will be provided to show that the locations and moment tensors of the elastic sources can be uniquely determined from the multi-frequency displacement data. In addition, several numerical examples will be provided to illustrate the validity and robustness of the proposed method.
报告人简介：郭玉坤，哈尔滨工业大学数学学院教授、博士生导师。本科和博士均毕业于吉林大学计算数学专业。研究领域为数学物理反问题，主要方向为波动方程反散射问题的分析与计算。在 Inverse Problems、Journal of Differential Equations和Journal of Computational Physics等期刊发表学术论文三十余篇。曾应邀访问美国特拉华大学，德国威尔斯特拉斯应用数学研究所，香港浸会大学和南方科技大学等单位进行科研合作。
