English

Dixmier-Douady for Dummies

Operator Algebras 2009-04-29 v2 Algebraic Topology

Abstract

The Dixmier-Douady invariant is the primary tool in the classification of continuous trace CC^*-algebras. This expository note explores its properties from the perspective of classical algebraic topology.

Keywords

Cite

@article{arxiv.0902.2025,
  title  = {Dixmier-Douady for Dummies},
  author = {Claude Schochet},
  journal= {arXiv preprint arXiv:0902.2025},
  year   = {2009}
}

Comments

Typos corrected, very minor changes. This paper has been accepted by the Notices AMS and will appear as a feature article - projected for August 2009

R2 v1 2026-06-21T12:10:30.756Z