English

Regular ideals under the ideal intersection property

Operator Algebras 2023-01-25 v1

Abstract

The goal of this short note is to prove that when AA is a closed *-subalgebra of a C*-algebra BB satisfying the ideal intersection property plus a mild axiom (INV), then the map JJAJ\mapsto J\cap A establishes an isomorphism from the boolean algebra of all regular ideals of BB to the boolean algebra of all regular, invariant ideals of AA.

Keywords

Cite

@article{arxiv.2301.10073,
  title  = {Regular ideals under the ideal intersection property},
  author = {Ruy Exel},
  journal= {arXiv preprint arXiv:2301.10073},
  year   = {2023}
}

Comments

8 pages, no figures

R2 v1 2026-06-28T08:18:44.590Z