Piecewise separable matrices (Q2504982)
From MaRDI portal
scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Piecewise separable matrices |
scientific article |
Statements
Piecewise separable matrices (English)
0 references
28 September 2006
0 references
In the paper, piecewise separable and piecewise quasiseparable matrices are defined. A piecewise separable matrix with \(p\) boundaries can be written as a sum of \(O(p)\) standard one-piece matrices. For a standard one-piece matrix an algorithm with \(O(n)\) estimate of the operation count is given. Quasiseparable and weakly semiseparable matrices can be also considered as piecewise separable matrices.
0 references
