A note on constraint preconditioners for
โ
Yiqin Lin; Yimin Wei
๐
Article
๐
2007
๐
John Wiley and Sons
๐
English
โ 89 KB
## Abstract A class of constraint preconditioners for solving twoโbyโtwo block linear equations with the (1,2)โblock being the transpose of the (2,1)โblock and the (2,2)โblock being zero was investigated in a recent paper of Cao (__Numer. Math.__ 2006; **103**:47โ61). In this short note, we extend