演讲人Speaker：杨扬 (Yang Yang)
题目Title: A coupled physics inverse problem in electro-seismic imaging
时间Date：2018年3月7日 Time：3:50 pm – 4:40 pm
地点Venue：A栋405
内容摘要(Abstract)：
Electro-seismic imaging is a geophysical imaging modality where electromagnetic wave is used to induce seismic wave in porous media. The mathematical model was derived by S. Pride in 1994 as a coupled system of the Maxwell's equations and the Biot's equations. In this talk, we will discuss a coupled physics inverse problem arising in electro-seismic imaging. The problem consists of retrieval of source data in the Biot's equations and inversion of the Maxwell's equations from the internal measurement. We will describe a time reversal approach to reconstruct the source data, and then prove that some parameters in the Maxwell's equations can be uniquely and stably determined from such data. This is based on joint work with Jie Chen, Yixian Gao and Peijun Li.
个人简介(Speaker Bio):
Yang Yang is an assistant professor in the Department of Computational Mathematics, Science and Engineering (CMSE) at Michigan State University. His research interests lie in inverse problems involving partial differential equations, including applications in medical imaging, geophysical imaging, and mathematical physics. He received his B.S. in mathematics from Zhejiang University, and then Ph.D. in mathematics from University of Washington (Advisor: Gunther Uhlmann). After completing his PhD, Yang Yang moved to Purdue University as a Golomb Visiting Assistant Professor and worked with Professor Plamen Stefanov from August 2014 to May 2017.
