A note on PSS preconditioners for generalized saddle point problems

作者：Shen, Shu-Qian^*

来源：Applied Mathematics and Computation, 2014, 237: 723-729.

DOI：10.1016/j.amc.2014.03.151

• Saddle point problem
• Positive semidefinite and skew-Hermitian splitting
• Preconditioning

In this note, the positive semidefinite and skew-Hermitian splitting (PSS) preconditioners introduced by Pan et al. (2006) [10] are further extended to the generalized saddle point problems with nonzero (2, 2) blocks. The model problem of Oseen equations is used to illustrate the presented spectral properties as well as the performance of the PSS preconditioner.

• 出版日期2014-6-15
• 单位中国石油大学（北京）