English

Operator algebras with contractive approximate identities II

Operator Algebras 2012-11-21 v2 Functional Analysis

Abstract

We make several contributions to our recent program investigating structural properties of algebras of operators on a Hilbert space. For example, we make substantial contributions to the noncommutative peak interpolation program begun by Hay and the first author, Hay and Neal. Another sample result: an operator algebra has a contractive approximate identity iff the linear span of the elements with positive real part is dense. We also extend the theory of compact projections to the most general case. Despite the title, our algebras are often allowed to have no approximate identity.

Keywords

Cite

@article{arxiv.1206.4022,
  title  = {Operator algebras with contractive approximate identities II},
  author = {David Peter Blecher and Charles John Read},
  journal= {arXiv preprint arXiv:1206.4022},
  year   = {2012}
}

Comments

18 pages. To appear J. Functional Analysis

R2 v1 2026-06-21T21:21:29.387Z