【学术报告】
报告题目：Recovering the source term of the biharmonic wave equation from phaseless measurements
报告人：郭玉坤 教授（哈尔滨工业大学）
邀请人：郑光辉
时间：2025年10月25日（周六）10:00--10:40
地点：数学院203报告厅
报告摘要：This talk concerns an inverse source problem for the biharmonic wave equation. A two-stage numerical method is proposed to identify the unknown source from the multifrequency phaseless data. In the first step, we establish a phase retrieval formula by introducing some artificial auxiliary point sources to the inverse source system. We show that the phase information can be uniquely determined and estimate the stability of this phase retrieval approach. Next, the Fourier method is adopted to reconstruct the source function from the phased multifrequency data. Numerical results will be presented to illustrate the performance of the proposed method.
报告人简介：郭玉坤，哈尔滨工业大学数学学院教授、博士生导师。本科和博士均毕业于吉林大学计算数学专业。研究领域为数学物理反问题，主要方向为波动方程反散射问题的理论分析与数值计算。在 SIAM系列、Inverse Problems、Journal of Computational Physics等期刊发表学术论文四十余篇。主持和参与多项与反问题相关的国家自然科学基金项目。
