| Article ID: | iaor19941065 |
| Country: | France |
| Volume: | 26 |
| Issue: | 2 |
| Start Page Number: | 177 |
| End Page Number: | 182 |
| Publication Date: | Apr 1992 |
| Journal: | RAIRO Operations Research |
| Authors: | Lasserre J.B. |
The paper shows that the direct method which consists of iteratively inverting sub-matrices of increasing size, has same