English

On the weak relative Dixmier property

Operator Algebras 2020-05-27 v1

Abstract

We show that every inclusion of von Neumann algebras with a faithful normal conditional expectation has the weak relative Dixmier property. This answers a question of Popa \cite{Po99}. The proof uses an improvement of Ellis' lemma for compact convex semigroup.

Keywords

Cite

@article{arxiv.1907.00615,
  title  = {On the weak relative Dixmier property},
  author = {Amine Marrakchi},
  journal= {arXiv preprint arXiv:1907.00615},
  year   = {2020}
}

Comments

4 pages

R2 v1 2026-06-23T10:08:21.711Z