报告人：刘晓莉副教授

报告题目：A time domain factorization method for obstacles with impedance boundary conditions

报告摘要：In this talk, we introduce the inverse acoustic time domain scattering problem for absorbing scatterers modeled by impedance boundary conditions. We present and analyze a factorization method for reconstructing the obstacle boundary from far field measurements. The analysis is based on using the Laplace transform and proving the coercivity of the solution operator in suitable weighted spaces in time. This leads us to consider a modified far field operator parameterized by the imaginary part of Laplace variable which is different but can be arbitrarily close to the original far field operator. As a proof of concept we also provide some preliminary numerical examples to test and discuss the effectiveness of the resulting inversion method when applied to the original far field operator.

报告时间：2025年9月16日  14:00-15:30

报告地点：腾讯会议

报告人简介：刘晓莉，MK体育数学科学公司副教授，硕士生导师。从事波传播与散射、反问题与成像研究。主持国自然科学基金青年项目1项、北航前沿交叉基金项目1项，参与北航青年科学家团队项目1项，获得第二届中国工业与应用数学学会青年托举人才项目，在SIAM J. Appl. Math., SIAM J. Imaging. Sci., Inverse Problems等期刊发表多篇论文。