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New preconditioners based on symmetric-triangular decomposition for saddle point problems

✍ Scribed by Xiao-Fei Peng; Wen Li; Shuhuang Xiang

Publisher
Springer Vienna
Year
2011
Tongue
English
Weight
217 KB
Volume
93
Category
Article
ISSN
0010-485X

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## Abstract A class of constraint preconditioners for solving two‐by‐two block linear equations with the (1,2)‐block being the transpose of the (2,1)‐block and the (2,2)‐block being zero was investigated in a recent paper of Cao (__Numer. Math.__ 2006; **103**:47–61). In this short note, we extend