学术报告:2021年 10月17日 09:40-10:20,嘉兴学院-王薇

发布者:吕小俊发布时间:2021-10-16浏览次数:240

威斯尼斯人60555入口官网邀请专家申请表


报告人

王薇

单位

嘉兴学院

报告题目

Iterative Runge-Kutta-type methods with convex penalty for inverse problems in Hilbert space


报告时间

20211017日周日上午940-1020

地点

腾讯会议 439 535 667

邀请人

钟敏

报告摘要

A s-stage Runge-Kutta-type iterative method with convex penalty for solving nonlinear ill-posed problems are proposed and analyzed in this paper. The approach is developed by using a family of Runge-Kutta-type methods to solve an initial value problem. The convergence and regularity of  the proposed method are obtained under certain conditions. The reconstruction results of the proposed method for some special cases are  studied through the numerical experiments on inverse potential problem and diffuse optical tomography. The numerical results indicate that the developed Runge-Kutta-type regularization method with convex penalty yield stable approximations to true solutions, especially the implicit schemes  have obvious advantages on allowing a wider range of step length, reducing iterative number and saving computation time.


报告人简介

王薇,理学博士,教授,硕士生导师。20114月在哈尔滨工业大学获得理学博士学位。20117月至20137月在复旦大学从事博士后研究工作。研究方向为反问题理论与计算,也包括地震波全波形反演、EIT问题、CT不完全数据的图像重构等应用。主持国家自然科学基金项目2项(青年基金项目、面上项目),浙江省自然科学基金项目2项(青年基金、一般项目),在Numer MathInverse Problems等有影响力的国际学术期刊上发表SCI论文20余篇。