@article{94c6a3f866514c36889a40a457ae7294,
title = "The extension problem for graph C*-algebras",
abstract = "We give a complete K-theoretical description of when an essential extension of two simple graph C*-algebras is again a graph C*-algebra.",
keywords = "Extensions, Fullness, Graph C*-algebras, K-theory",
author = "S{\o}ren Eilers and James Gabe and Takeshi Katsura and Efren Ruiz and Mark Tomforde",
note = "Funding Information: Eilers was supported by the DFF-Research Project 2 “Automorphisms and Invariants of Operator Algebras”, no. 7014-00145B, and by the Danish National Research Foundation through the Centre for Symmetry and Deformation (DNRF92). Gabe was funded by the Carlsberg Foundation through an Internationalisation Fellowship. Ruiz and Tomforde were supported by Simons Foundation Collaboration Grants #567380 and #527708, respectively. We thank the anonymous referee for a careful reading of an earlier version of this paper, which improved the exposition and led to the correction of several potentially confusing mistakes. Publisher Copyright: {\textcopyright} 2020, Mathematical Science Publishers. All rights reserved.",
year = "2020",
doi = "10.2140/akt.2020.5.295",
language = "English",
volume = "5",
pages = "295--315",
journal = "Annals of K-Theory",
issn = "2379-1683",
publisher = "Mathematical Science Publishers",
number = "2",
}