报告题目：

Solving High Condition Number Systems

报 告 人：

Prof. Craig C. Douglas（University of Wyoming）

报告时间：

2018年05月10日 10:00--11:00

报告地点：

理学院东北楼四楼报告厅（404）

报告摘要：

This talk presents results that combine two theoretically sound methods (spectral projection and multigrid methods) together to attack ill conditioned linear systems. Our preliminary results show that the proposed algorithm applied to a Krylov subspace method takes much fewer iterations for solving an ill conditioned problem downloaded from a popular online sparse matrix collection. All previous methods that are similar are for specific applications while our results are completely general.