Semiclassical analysis of elastic surface waves and inverse problems(来源: 清华大学丘成桐数学科学中心)
Seminar on Microlocal Analysis and Applications
组织者 Organizer:Chen Xi(Fudan), Long Jin(Tsinghua)
时间 Time:10:00-11:00 am, June 17 & July 1(Fri), 2022
地点 Venue:Zoom: 618-038-6257, Password: SCMS
Title: Semiclassical analysis of elastic surface waves and inverse problems
Speaker: Zhai Jian(Fudan)
Time: 10:00-11:00 am, July 1st (Fri), 2022
Venue: Zoom: 618-038-6257, Password: SCMS
Abstract: We present a semiclassical description of surface waves traveling in stratified elastic medium. This semiclassical perspective is known to the geophysical community as the slow variational principle, and its mathematically rigorous framework was proposed by Colin de Verdiere (for acoustics). I will also talk about related inverse spectral problems, that are to use the dispersion relations of surface waves to explore the subsurface structure.