报告题目:Forward and inverse wave scattering from axisymmetric objects based on integral equations

报告人：赖俊 研究员

报告时间：2022年06月13日 10:00-11:30

报告地点：理学楼A110

摘要：Fast, high-accuracy algorithms for electromagnetic and elastic scattering from axisymmetric objects are of great importance for modeling physical phenomena in optics, materials science (e.g. meta-materials), and many other fields of applied science.  In this talk, we develop an FFT-accelerated separation of variables solver that can be used to efficiently invert integral equation formulations of Maxwell's equations and Navier equations for scattering from axisymmetric bodies. The solver is also extended to geometries with non-smooth generating curves and large cavities. In the end, we also discuss the application of the fast and high-order solver in the inverse scattering to recover the objects with axis-symmetry. 

报告人介绍：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”。

邀请人：张磊