Sparse Approximate Inverses and Target Matrices
β Scribed by Holland, Ruth M.; Wathen, Andy J.; Shaw, Gareth J.
- Book ID
- 121453546
- Publisher
- Society for Industrial and Applied Mathematics
- Year
- 2005
- Tongue
- English
- Weight
- 185 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1064-8275
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π SIMILAR VOLUMES
We investigate different methods for computing a sparse approximate inverse M for a given sparse matrix A by minimizing AM -E in the Frobenius norm. Such methods are very useful for deriving preconditioners in iterative solvers, especially in a parallel environment. We compare different strategies f
We investigate the use of sparse approximate inverse techniques in a multilevel block ILU preconditioner to design a robust and efficient parallelizable preconditioner for solving general sparse matrices. The resulting preconditioner retains robustness of the multilevel block ILU preconditioner (BIL