English

Nowhere scattered multiplier algebras

Operator Algebras 2025-08-20 v1

Abstract

We study sufficient conditions under which a nowhere scattered C*-algebra AA has a nowhere scattered multiplier algebra M(A)\mathcal{M}(A), that is, we study when M(A)\mathcal{M}(A) has no nonzero, elementary ideal-quotients. In particular, we prove that a σ\sigma-unital C*-algebra AA of finite nuclear dimension, or real rank zero, or stable rank one with kk-comparison, is nowhere scattered if and only if M(A)\mathcal{M}(A) is.

Keywords

Cite

@article{arxiv.2304.14007,
  title  = {Nowhere scattered multiplier algebras},
  author = {Eduard Vilalta},
  journal= {arXiv preprint arXiv:2304.14007},
  year   = {2025}
}

Comments

22 pages

R2 v1 2026-06-28T10:19:23.742Z