首页   按字顺浏览 期刊浏览 卷期浏览 Stable multiscale discretizations for saddle point problems and preconditioning
Stable multiscale discretizations for saddle point problems and preconditioning

 

作者: Reinhard Hochmuth,  

 

期刊: Numerical Functional Analysis and Optimization  (Taylor Available online 1998)
卷期: Volume 19, issue 7-8  

页码: 789-806

 

ISSN:0163-0563

 

年代: 1998

 

DOI:10.1080/01630569808816859

 

出版商: Marcel Dekker, Inc.

 

关键词: Saddle point problems;multiscale methods;stability;condition numbers;65N12;35J25;35Q30

 

数据来源: Taylor

 

摘要:

Stability for discretizations of saddle point problems is typically the result of satisfying the discrete Babuška-Brezzi condition. As a consequence a number of natural discretizations are ruled out and some effort is required to provide stable ones. Therefore ideas for circumventing the Babuška-Brezzi condition are interesting. Here an ansatz presented in a series of papers by Hughes et al. is described and investigated in the framework of multiscale discretizations. In particular discretizations for appending boundary conditions by Lagrange multipliers and the stationary Stokes problem are considered. Sufficient conditions for their stability are given and diagonal preconditioned which give uniformly bounded condition numbers are proposed.

 

点击下载:  PDF (1366KB)



返 回