| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4601167 | Linear Algebra and its Applications | 2011 | 16 Pages |
Abstract
We characterize the sets X of all products PQ, and Y of all products PQP, where P,Q run over all orthogonal projections and we solve the problems argmin{‖P-Q‖:(P,Q)∈Z}, for Z=X or Y. We also determine the polar decompositions and Moore–Penrose pseudoinverses of elements of X.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
