English

Nonseparable UHF algebras II: Classification

Operator Algebras 2013-01-28 v1 Logic

Abstract

For every uncountable cardinal κ\kappa there are 2κ2^\kappa nonisomorphic simple AF algebras of density character κ\kappa and 2κ2^\kappa nonisomorphic hyperfinite II1_1 factors of density character κ\kappa. These estimates are maximal possible. All C*-algebras that we construct have the same Elliott invariant and Cuntz semigroup as the CAR algebra.

Keywords

Cite

@article{arxiv.1301.6152,
  title  = {Nonseparable UHF algebras II: Classification},
  author = {Ilijas Farah and Takeshi Katsura},
  journal= {arXiv preprint arXiv:1301.6152},
  year   = {2013}
}
R2 v1 2026-06-21T23:15:32.438Z