Semiprojectivity and properly infinite projections in graph C*-algebras
Operator Algebras
2015-12-24 v1
Abstract
We give a complete description of which unital graph C*-algebras are semiprojective, and use it to disprove two conjectures by Blackadar. To do so, we perform a detailed analysis of which projections are properly infinite in such C*-algebras.
Keywords
Cite
@article{arxiv.1512.07277,
title = {Semiprojectivity and properly infinite projections in graph C*-algebras},
author = {Søren Eilers and Takeshi Katsura},
journal= {arXiv preprint arXiv:1512.07277},
year = {2015}
}