Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4582376 | Expositiones Mathematicae | 2013 | 9 Pages |
Abstract
An elementary proof is given that the projection from the space of all symmetric pÃp matrices onto a linear subspace is positive if and only if the subspace is a Jordan algebra. This solves a problem in a statistical model.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Bent Fuglede, Søren Tolver Jensen,