Matrix range characterizations of operator system properties
Functional Analysis
2021-06-09 v2
Abstract
For finite-dimensional operator systems , , we show that the local lifting property and -exactness of may be characterized by measurements of the disparity between the matrix range and the minimal/maximal matrix convex sets over its individual levels. We then examine these concepts from the point of view of free spectrahedra, direct sums of operator systems, and products of matrix convex sets.
Cite
@article{arxiv.1912.06279,
title = {Matrix range characterizations of operator system properties},
author = {Benjamin Passer and Vern I. Paulsen},
journal= {arXiv preprint arXiv:1912.06279},
year = {2021}
}
Comments
20 pages. Version 2 has minor edits and a few more references. To appear in Journal of Operator Theory