| Block Householder computation of sparse matrix singular values Recent countries visiting this post |  |
 | 3 | United States |
 | 3 | Japan |
 | 1 | Russian Federation |
 | 1 | |
 | 1 | Brazil |
| Block Householder computation of sparse matrix singular values Recent countries visiting this post | |
| 3 | United States |
| 3 | Japan |
| 1 | Russian Federation |
| 1 | |
| 1 | Brazil |