A note on skewcirculant preconditioners for elliptic problems
โ Scribed by Thomas Huckle
- Book ID
- 105473718
- Publisher
- Springer US
- Year
- 1992
- Tongue
- English
- Weight
- 286 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1017-1398
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We consider applying the preconditioned conjugate gradient (PCG) method to solving linear systems Ax = b where the matrix A comes from the discretization of second-order elliptic operators with Dirichlet boundary conditions. Let (L+ ) -1 (L t + ) denote the block Cholesky factorization of A with low
## 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