报告名称：A modified factorization method for simultaneously imaging an inhomogeneous medium and impenetrable obstacles

主讲人：曲风龙 教授

邀请人：曾芳 副教授

时间：2022年5月11日   15:20

地点：腾讯会议（ID：442 727 534）

主办单位：数学科学学院

报告摘要

In this report I will introduce the inverse problem of scattering of time-harmonic acoustic waves by a mixed-type scatter, which is the union of an inhomogeneous penetrable medium with a conductive transmission condition and impenetrable obstacles with various boundary conditions. We aim to develop a modified factorization method to show that both the support of the inhomogeneous medium and the shape and location of the impenetrable obstacle can be simultaneously reconstructed by means of the far-field data. Numerical examples are presented to illustrate the feasibility and effectiveness of the proposed inversion algorithms.

专家简介

曲风龙，烟台大学数学与信息科学学院，教授。主要研究领域为反问题的数学理论与数值算法，在SIAM J. Sci. Comput.、SIAM J. Imaging Sci.、IP、IPI等杂志发表学术论文20余篇。