By Mr Aidan Sims

Journal articles

Farthing C; Pask D; Sims A, 2009, 'Crossed products of k-graph c*-algebras by zl', Houston Journal of Mathematics, 35, pp. 903 - 933

Pask D; Rennie A; Sims A, 2009, 'Noncommutative manifolds from graph and k-graph c*-algebras', Communications in Mathematical Physics, 292, pp. 607 - 636, http://dx.doi.org/10.1007/s00220-009-0926-x

Katsura T; Sims A; Tomforde M, 2009, 'Realizations of AF-algebras as graph algebras, Exel-Laca algebras, and ultragraph algebras', Journal of Functional Analysis, 257, pp. 1589 - 1620, http://dx.doi.org/10.1016/j.jfa.2009.05.002

Robertson D; Sims A, 2009, 'Simplicity of C*-algebras associated to row-finite locally convex higher-rank graphs', Israel Journal of Mathematics, 172, pp. 171 - 192, http://dx.doi.org/10.1007/s11856-009-0070-5

Pask D; Quigg J; Sims A, 2009, 'Coverings of skew-products and crossed products by coactions', Journal of the Australian Mathematical Society, 86, pp. 379 - 398, http://dx.doi.org/10.1017/S144678870800030X

Farthing C; Pask D; Sims A, 2009, 'CROSSED PRODUCTS OF k-GRAPH C*-ALGEBRAS BY Z^l', HOUSTON JOURNAL OF MATHEMATICS, 35, pp. 903 - 933

Kumjian A; Pask D; Sims A, 2008, 'C*-algebras associated to coverings of k;-graphs', Documenta Mathematica, 13, pp. 161 - 205

Pask D; Rennie A; Rennie A; Sims A, 2008, 'The noncommutative geometry of k-graph C*-algebras', Journal of K Theory, 1, pp. 259 - 304, http://dx.doi.org/10.1017/is007011015jkt013

Katsura T; Muhly PS; Sims A; Tomforde M, 2008, 'Ultragraph C*-algebras via topological quivers', Studia Mathematica, 187, pp. 137 - 155, http://dx.doi.org/10.4064/sm187-2-3

Robertson DI; Sims A, 2007, 'Simplicity of C*-algebras associated to higher-rank graphs', Bulletin of the London Mathematical Society, 39, pp. 337 - 344, http://dx.doi.org/10.1112/blms/bdm006

Pask D; Raeburn I; Rørdam M; Sims A, 2006, 'Rank-two graphs whose C*-algebras are direct limits of circle algebras', Journal of Functional Analysis, 239, pp. 137 - 178, http://dx.doi.org/10.1016/j.jfa.2006.04.003

Sims A, 2006, 'Relative cuntz-krieger algebras of finitely aligned higher-rank graphs', Indiana University Mathematics Journal, 55, pp. 849 - 868, http://dx.doi.org/10.1512/iumj.2006.55.2579

Allen S; Pask D; Sims A, 2006, 'A dual graph construction for higher-rank graphs, and X-theory for finite 2-graphs', Proceedings of the American Mathematical Society, 134, pp. 455 - 464, http://dx.doi.org/10.1090/S0002-9939-05-07994-3

Sims A, 2006, 'Gauge-invariant ideals in the C*-algebras of finitely aligned higher-rank graphs', Canadian Journal of Mathematics, 58, pp. 1268 - 1290, http://dx.doi.org/10.4153/CJM-2006-045-2

Raeburn I; Sims A, 2005, 'Product systems of graphs and the Toeplitz algebras of higher-rank graphs', Journal of Operator Theory, 53, pp. 399 - 429

Raeburn I; Sims A; Yeend T, 2004, 'The C*-algebras of finitely aligned higher-rank graphs', Journal of Functional Analysis, 213, pp. 206 - 240, http://dx.doi.org/10.1016/j.jfa.2003.10.014

Raeburn I; Sims A; Yeend T, 2003, 'Higher-rank graphs and their C*-algebras', Proceedings of the Edinburgh Mathematical Society, 46, pp. 99 - 115, http://dx.doi.org/10.1017/S0013091501000645

Fowler NJ; Sims A, 2002, 'Product systems over right-angled Artin semigroups', Transactions of the American Mathematical Society, 354, pp. 1487 - 1509, http://dx.doi.org/10.1090/S0002-9947-01-02911-7

Sims A; Yeend T, 'C*-ALGEBRAS ASSOCIATED TO PRODUCT SYSTEMS OF HILBERT BIMODULES', JOURNAL OF OPERATOR THEORY, 64, pp. 349 - 376

Conference Papers

Carlsen TM; Sims A, 2016, 'On Hong and Szymański's description of the primitive-ideal space of a graph algebra', in Abel Symposia, pp. 109 - 126, http://dx.doi.org/10.1007/978-3-319-39286-8_4

Raeburn I; Sims A; Williams DP, 1999, 'Twisted actions and obstructions in group cohomology', in Cuntz J; Echterhoff S (ed.), C(STAR)-ALGEBRAS, SPRINGER-VERLAG BERLIN, GERMANY, UNIV MUNSTER, MUNSTER, pp. 161 - 181, presented at SFB Workshop on C(star)-Algebras, GERMANY, UNIV MUNSTER, MUNSTER, 08 March 1999 - 12 March 1999

Preprints

Brownlowe N; Clark LO; Pardo E; Sims A, 2026, Global and local triviality for extensions of ample groupoids: an algebraic approach, https://arxiv.org/abs/2609.32294v1

Quigg J; Ruiz E; Sims A, 2026, Morita equivalence of graded C*-algebras, https://arxiv.org/abs/2608.12662v1

Brothier A; Sims A; Wijesena D, 2026, Classification of representations of higher-rank graph C*-algebras, http://dx.doi.org/10.48550/arxiv.2604.15883

Ruiz E; Sims A, 2025, Lifting isomorphisms in $K$-theory through gradings of $C^*$-algebras, https://arxiv.org/abs/2507.03389v1

Huef AA; Ng ACS; Sims A, 2025, K-theory of C*-algebras arising from commuting Hilbert bimodules and invariant ideals, https://arxiv.org/abs/2504.00377v2

Carlsen TM; Duwenig A; Ruiz E; Sims A, 2024, Norm upper-semicontinuity of functions supported on open abelian isotropy in étale groupoids (a corrigendum to "Reconstruction of groupoids and C*-rigidity of dynamical systems," Adv. Math 390 (2021), 107923), http://dx.doi.org/10.48550/arxiv.2412.00018

Mundey A; Sims A, 2024, Self-similar groupoid actions on k-graphs, and invariance of K-theory for cocycle homotopies, https://doi.org/10.1007/s43034-025-00440-6

Evington S; Ng ACS; Sims A; White S, 2024, Nuclear dimension of extensions of commutative C*-algebras by Kirchberg algebras, https://arxiv.org/abs/2409.12872v2

Duwenig A; Sims A, 2024, Smooth Cartan triples and Lie twists over Hausdorff étale Lie groupoids, http://dx.doi.org/10.48550/arxiv.2309.09177

Brownlowe N; Kumjian A; Pask D; Sims A, 2024, Embeddability of higher-rank graphs in groupoids, and the structure of their C*-algebras, https://arxiv.org/abs/2403.01337v1

Armstrong B; Ng ACS; Sims A; Zhou Y, 2023, A twist over a minimal étale groupoid that is topologically nontrivial over the interior of the isotropy, https://doi.org/10.1090/proc/17159

Mundey A; Sims A, 2023, Homology and twisted C*-algebras for self-similar actions and Zappa-Szép products, https://arxiv.org/abs/2311.09600v2

Brix KA; Carlsen TM; Sims A, 2023, Ideal structure of C*-algebras of commuting local homeomorphisms, https://arxiv.org/abs/2303.02313v2

Brownlowe N; Buss A; Gonçalves D; Hume JB; Sims A; Whittaker MF, 2023, KK-duality for self-similar groupoid actions on graphs, https://arxiv.org/abs/2302.03989v2

Frausino R; Ng ACS; Sims A, 2022, Reconstruction of topological graphs and their Hilbert bimodules, https://doi.org/10.1017/prm.2023.99

Brix KA; Carlsen TM; Sims A, 2022, Some results regarding the ideal structure of C*-algebras of étale groupoids, https://doi.org/10.1112/jlms.12870

Huef AA; Ng ACS; Sims A, 2021, Stably finite extensions of rank-two graph C*-algebras, https://arxiv.org/abs/2111.15165v1

Armstrong B; Brownlowe N; Sims A, 2021, Simplicity of twisted C*-algebras of Deaconu--Renault groupoids, https://doi.org/10.4171/JNCG/527

Ionescu M; Kumjian A; Renault JN; Sims A; Williams DP, 2021, Pushouts of extensions of groupoids by bundles of abelian groups, https://arxiv.org/abs/2107.05776v1

Armstrong B; Castro GGD; Clark LO; Courtney K; Lin Y-F; McCormick K; Ramagge J; Sims A; Steinberg B, 2021, Reconstruction of twisted Steinberg algebras, https://doi.org/10.1093/imrn/rnab291

Pask D; Sierakowski A; Sims A, 2020, Structure theory and stable rank for C*-algebras of finite higher-rank graphs, https://arxiv.org/abs/2011.12656v2

Lawson MV; Sims A; Vdovina A, 2020, Higher dimensional generalizations of the Thompson groups via higher rank graphs, https://arxiv.org/abs/2010.08960v3

Eilers S; Ruiz E; Sims A, 2020, Amplified graph C*-algebras II: reconstruction, https://arxiv.org/abs/2007.00853v1

Patterson Q; Sierakowski A; Sims A; Taylor J, 2020, Graded $K$-theory and $K$-homology of relative Cuntz-Pimsner algebras and graph $C^*$-algebras, https://doi.org/10.1016/j.jmaa.2020.124822

Ionescu M; Kumjian A; Renault JN; Sims A; Williams DP, 2020, C*-Algebras of extensions of groupoids by group bundles, https://arxiv.org/abs/2001.01312v3

Hazrat R; Pask D; Sierakowski A; Sims A, 2019, An algebraic analogue of Exel-Pardo C*-algebras, https://arxiv.org/abs/1912.12117v1

Fletcher J; Gillaspy E; Sims A, 2019, Homotopy of product systems and K-theory of Cuntz-Nica-Pimsner algebras, https://doi.org/10.1512/iumj.2022.71.8810

Bosa J; Gabe J; Sims A; White S, 2019, The nuclear dimension of $\mathcal O_\infty$-stable $C^*$-algebras, https://arxiv.org/abs/1906.02066v2

Ara P; Bosa J; Pardo E; Sims A, 2019, The groupoids of adaptable separated graphs and their type semigroup, https://arxiv.org/abs/1904.05197v3

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