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学术活动
A Relaxed Regularized HSS Preconditioner for Saddle-Point Linear System
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报告人:
Zhiru Ren, Associate Professor, Central University of Finance and Economics
邀请人:
Zhongzhi Bai, Professor
题目:
A Relaxed Regularized HSS Preconditioner for Saddle-Point Linear System
时间地点:
10:00-11:00, November 16 (Saturday), N733
摘要:

In this talk, we will introduce relaxed regularized HSS preconditioner based on the regularized Hermitian and skew-Hermitian method to accelerate the iteration process when solving saddle-point linear system. Two spectral properties of the preconditioned coefficient matrix are proved. We also discuss the selection of parameters in the relaxed regularized HSS preconditioner. Numerical experiments are used to verify the effectiveness of the proposed preconditioner.