報告題目:Linearized Inverse Schrodinger Potential Problem with Partial Data and Its DNN Inversion
報 告 人:陸帥 教授
所在單位:複旦大學
報告時間:2022年6月24日 星期五 下午2:00-3:00
報告地點:騰訊會議 ID:627-744-912
點擊鍊接入會,或添加至會議列表:https://meeting.tencent.com/dm/OQWg1I7M9dip
校内聯系人:刁懷安 diao@jlu.edu.cn
報告摘要:Inverse Schrodinger potential problem concerns about the recovery of potential function in the Schrodinger equation in bounded domain throught DtN map. In this talk, we introduce the linearized local DtN map in the partial data setting, and prove a stability estimate with explicit dependence on wavenumber. This is an increasing stability result, in the sense that the logarithmic stable term decays when wavenumber increases. Furthermore, a heuristic DNN algorithm based on a regularization scheme is applied and the stability improvement with respect to the wavenumber is observed. It is a joint work with Boxi Xu (SUFE) and Sen Zou (Fudan).
報告人簡介:陸帥,複旦大學數學科學學院教授,主要從事數學物理反問題計算方法與數學理論的研究,特别是反問題正則化方法收斂性分析及偏微分方程反問題穩定性理論等。至今在Inverse Problems、SIAM系列、Numer. Math.、Math. Comp.等權威期刊共發表學術論文五十餘篇,合作出版英文學術專著一本。2019年獲得國家傑出青年科學基金資助,現任《Inverse Problems》的編委,曾獲上海市自然科學獎一等獎(第二完成人)。