Low-rank matrix approximations over canonical subspaces
In this paper we derive closed form expressions for the nearest rank-\(k\) matrix on canonical subspaces. We start by studying three kinds of subspaces. Let \(X\) and \(Y\) be a pair of given matrices. The first subspace contains all the \(m\times n\) matrices \(A\) that satisfy \(AX=O\). The...
| Published in: | Journal of Numerical Analysis and Approximation Theory |
|---|---|
| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Publishing House of the Romanian Academy
2020-09-01
|
| Subjects: | |
| Online Access: | https://ictp.acad.ro/jnaat/journal/article/view/1195 |