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RECENT PAPERS      Spielberg's homepage

(with Nathan Brownlowe, Alex Mundey, David Pask, Anne Thomas) C*-algebras associated to graphs of groups, Advances in Mathematics 316 (2017) 114-186. C*-algebras for categories of paths asociated to the Baumslag-Solitar groups Journal of the London Mathematical Society 2012; doi: 10.1112/jlms/jds025, http://jlms.oxfordjournals.org/cgi/reprint/jds025?ijkey=30ICiayV40zxZsr&keytype=ref. Groupoids and C*-algebras for categories of paths Transactions of the American Mathematical Society 366 (2014), no. 11, 5771–5819. (with Menassie Ephrem) K-theory of C*-algebras of directed graphs Houston J. Math. 37 (2011), no. 2, 435-447. Non-cyclotomic Presentations of Modules and Prime-order Automorphisms of Kirchberg Algebras J. Reine Angew. Math. 613 (2007), 211-230. Graph-based models for Kirchberg algebras J. Operator Theory 57 (2007), no. 2, 347-374. Weak semiprojectivity for purely infinite C*-algebras Canad. Math. Bull. v. 50 no. 3 (2007), 460-468. Semiprojectivity for certain purely infinite C*-algebras Trans. Amer. Math. Soc. 361 (2009), no. 6, 2805-2830. A functorial approach to the C*-algebras of a graph Internat. J. Math. 13 (2002), no. 3, 245-277.