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Tsinghua-BIMSA Seminars in Applied Mathematics
Fast solvers based on integral equation methods for wave scattering and inverse scattering
Fast solvers based on integral equation methods for wave scattering and inverse scattering
Organizer
Speaker
Jun Lai
Time
Friday, March 18, 2022 10:00 AM - 11:30 AM
Online
Tencent 286 772 015
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Abstract
Wave scattering and inverse scattering have been appeared in a lot of important applications, including non-destructive testing, seismic inversion, radar technology and medical imaging, etc. Integral equation method provides an effective tool for solving wave scattering and inverse scattering problems. In this talk, fast and high order numerical methods based on integral equations will be presented for elastic wave equations. In particular, I will talk about the numerical algorithms using high order discretization of singular integrals and the fast multipole method for evaluating the elastic wave scattering in complex media, as well as their applications in inverse elastic wave scattering problems with phaseless scattered data and the imaging of multiple elastic particles.
Speaker Intro
赖俊，南京大学数学系本科，美国密西根州立大学应用数学博士毕业，曾任纽约大学柯朗数学研究所博士后及讲师（Courant Instructor），目前任浙江大学数学科学学院“百人计划”研究员，主要研究声波，电磁波及弹性波方程的散射与反散射问题，在数学知名杂志ACHA，SISC，Math Comp，Inverse Problems等发表文章多篇，主持国家面上项目，并参与基金委重大研究计划，基金委创新群体等研究，曾入选中组部高层次青年人才计划，获十一届全国反问题年会“优秀青年学术奖”。