@article{bd5c3bca451e4e368ca6ad05e3d7389e,
title = "Semiprojectivity and properly infinite projections in graph C⁎-algebras",
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 = "Graph C-algebras, Properly infinite projections, Semiprojectivity",
author = "S{\o}ren Eilers and Takeshi Katsura",
note = "Funding Information: This work was supported by the Danish National Research Foundation through the Centre for Symmetry and Deformation (DNRF92). The first named author was further supported by VILLUM FONDEN through the network for Experimental Mathematics in Number Theory, Operator Algebras, and Topology. Publisher Copyright: {\textcopyright} 2017 Elsevier Inc.",
year = "2017",
month = sep,
day = "7",
doi = "10.1016/j.aim.2017.06.034",
language = "English",
volume = "317",
pages = "108--156",
journal = "Advances in Mathematics",
issn = "0001-8708",
publisher = "Academic Press Inc.",
}