By Mr Aidan Sims

Preprints

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

Brownlowe N; Laca M; Robertson D; Sims A, 2018, Reconstructing directed graphs from generalised gauge actions on their Toeplitz algebras, https://arxiv.org/abs/1812.08903v1

Afsar Z; Huef AA; Raeburn I; Sims A, 2018, Equilibrium states on higher-rank Toeplitz noncommutative solenoids, https://arxiv.org/abs/1810.05323v3

Farsi C; Kumjian A; Pask D; Sims A, 2018, Ample groupoids: equivalence, homology, and Matui's HK conjecture, https://arxiv.org/abs/1808.07807v1

Sims A, 2018, The suspension of a graph, and associated C*-algebras, https://arxiv.org/abs/1807.08067v1

Clark LO; Exel R; Pardo E; Sims A; Starling C, 2018, Simplicity of algebras associated to non-Hausdorff groupoids, https://arxiv.org/abs/1806.04362v2

Rennie A; Robertson D; Sims A, 2018, Poincare duality for Cuntz-Pimsner algebras of bimodules, https://arxiv.org/abs/1804.08114v1

Ionescu M; Kumjian A; Sims A; Williams DP, 2018, The Dixmier-Douady Classes of Certain Groupoid $C^*$-Algebras with Continuous Trace, https://arxiv.org/abs/1801.00832v1

Claramunt J; Sims A, 2017, Preferred traces on C*-algebras of self-similar groupoids arising as fixed points, https://doi.org/10.1016/j.jmaa.2018.06.019

Carlsen TM; Ruiz E; Sims A; Tomforde M, 2017, Reconstruction of groupoids and C*-rigidity of dynamical systems, https://doi.org/10.1016/j.aim.2021.107923

Sims A, 2017, Étale groupoids and their $C^*$-algebras, https://arxiv.org/abs/1710.10897v2

Bruce C; Laca M; Ramagge J; Sims A, 2017, Equilibrium states and growth of quasi-lattice ordered monoids, https://doi.org/10.1090/proc/14108

Buss A; Sims A, 2017, Opposite algebras of groupoid C*-algebras, https://arxiv.org/abs/1708.04105v1

Afsar Z; Sims A, 2017, KMS states on the C*-algebras of Fell bundles over groupoids, https://doi.org/10.1017/S0305004119000379

Rainone T; Sims A, 2017, A dichotomy for groupoid C*-algebras, https://arxiv.org/abs/1707.04516v2

Kumjian A; Pask D; Sims A, 2017, Graded C*-algebras, graded K-theory, and twisted P-graph C*-algebras, https://arxiv.org/abs/1706.00563v1

Pask D; Sierakowski A; Sims A, 2017, Unbounded quasitraces, stable finiteness and pure infiniteness, https://arxiv.org/abs/1705.01268v1

Ara P; Hazrat R; Li H; Sims A, 2017, Graded Steinberg algebras and their representations, https://doi.org/10.2140/ant.2018.12.131

Rennie A; Sims A, 2016, Non-Commutative Vector Bundles for Non-Unital Algebras, https://doi.org/10.3842/SIGMA.2017.041

Brownlowe N; Hawkins M; Sims A, 2016, The Toeplitz noncommutative solenoid and its KMS states, https://arxiv.org/abs/1608.01782v2

Carlsen TM; Ruiz E; Sims A, 2016, Equivalence and stable isomorphism of groupoids, and diagonal-preserving stable isomorphisms of graph C*-algebras and Leavitt path algebras, https://doi.org/10.1090/proc/13321

Clark LO; Edie-Michell C; Huef AA; Sims A, 2016, Ideals of Steinberg algebras of strongly effective groupoids, with applications to Leavitt path algebras, https://arxiv.org/abs/1601.07238v1

Ara P; Bosa J; Hazrat R; Sims A, 2016, Reconstruction of graded groupoids from graded Steinberg algebras, https://arxiv.org/abs/1601.02872v2

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