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Dr Anna Duwenig

Dr Anna Duwenig

Lecturer

Please see my CV in the Bio section

Science
School of Mathematics & Statistics

You can find my current CV here.
  • Journal articles | 2026
    Duwenig A; Li B, 2026, 'The Zappa-Szép product of twisted groupoids', DOCUMENTA MATHEMATICA, http://dx.doi.org/10.4171/dm/1062
    Journal articles | 2025
    Carlsen TM; Duwenig A; Ruiz E; Sims A, 2025, 'Erratum: Norm upper-semicontinuity of functions supported on open abelian isotropy in étale groupoids. Corrigendum to “Reconstruction of groupoids and C⁎-rigidity of dynamical systems” [Adv. Math. 390 (2021) 107923] (Advances in Mathematics (2021) 390, (S0001870821003625), (10.1016/j.aim.2021.107923))', Advances in Mathematics, 466, http://dx.doi.org/10.1016/j.aim.2025.110150
    Journal articles | 2025
    Duwenig A; Eifler K; Ganesan P; Ismert L; Meschitti V; Plosker S; Strung K, 2025, 'The Operator Algebras Mentor Network: Impact of Community-Based Mentoring', Journal of Humanistic Mathematics, 15, pp. 334 - 354, http://dx.doi.org/10.5642/jhummath.tzhp4627
    Journal articles | 2025
    Duwenig A; Li B, 2025, 'Imprimitivity theorems and self-similar actions on Fell bundles', Journal of Functional Analysis, 288, http://dx.doi.org/10.1016/j.jfa.2024.110699
    Journal articles | 2025
    Duwenig A; Williams DP; Zimmerman J, 2025, 'Non-traditional Cartan Subalgebras in Twisted Groupoid C∗-Algebras', International Mathematics Research Notices, 2025, http://dx.doi.org/10.1093/imrn/rnaf011
    Journal articles | 2025
    Duwenig A, 2025, 'The imprimitivity Fell bundle', Canadian Journal of Mathematics, http://dx.doi.org/10.4153/S0008414X24000907
    Journal articles | 2024
    Courtney K; Duwenig A; Georgescu MC; an Huef A; Viola MG, 2024, 'Alexandrov groupoids and the nuclear dimension of twisted groupoid C⁎-algebras', Journal of Functional Analysis, 286, http://dx.doi.org/10.1016/j.jfa.2024.110372
    Journal articles | 2023
    Duwenig A; Li B, 2023, 'Equivalence of Fell bundles is an equivalence relation', MUENSTER JOURNAL OF MATHEMATICS, 16, pp. 95 - 145, http://dx.doi.org/10.17879/51009605127
    Journal articles | 2022
    Duwenig A; Gillaspy E; Norton R, 2022, 'Analyzing the Weyl Construction for Dynamical Cartan Subalgebras', International Mathematics Research Notices, 2022, pp. 15721 - 15755, http://dx.doi.org/10.1093/imrn/rnab114
    Journal articles | 2022
    Duwenig A; Li B, 2022, 'The Zappa-Szép product of a Fell bundle and a groupoid', Journal of Functional Analysis, 282, http://dx.doi.org/10.1016/j.jfa.2021.109268
    Journal articles | 2022
    Duwenig A; Williams DP; Zimmerman J, 2022, 'Renault's j-map for Fell bundle C⁎-algebras', Journal of Mathematical Analysis and Applications, 516, http://dx.doi.org/10.1016/j.jmaa.2022.126530
    Journal articles | 2020
    Duwenig A; Emerson H, 2020, 'TRANSVERSALS, DUALITY, AND IRRATIONAL ROTATION', Transactions of the American Mathematical Society Series B, 7, pp. 254 - 289, http://dx.doi.org/10.1090/btran/54
    Journal articles | 2020
    Duwenig A; Gillaspy E; Norton R; Reznikoff S; Wright S, 2020, 'Cartan subalgebras for non-principal twisted groupoid C⁎-algebras', Journal of Functional Analysis, 279, http://dx.doi.org/10.1016/j.jfa.2020.108611
    Journal articles | 2020
    Duwenig A, 2020, 'Elliptic operators and K-homology', Rocky Mountain Journal of Mathematics, 50, pp. 91 - 124, http://dx.doi.org/10.1216/RMJ.2020.50.91
  • Preprints | 2026
    Archey D; Duwenig A; Hua S; McCormick K; Norton R; Yang D, 2026, Cartan subalgebras in self-similar graph $C^*$-algebras
    Preprints | 2025
    Duwenig A; Eifler K; Ganesan P; Ismert L; Meschitti V; Plosker S; Strung K, 2025, The Operator Algebras Mentor Network: Impact of Community-Based Mentoring, http://arxiv.org/abs/2501.18488v1
    Preprints | 2025
    Duwenig A, 2025, Non-traditional C*-diagonals in twisted groupoid C*-algebras, http://arxiv.org/abs/2505.17913v1
    Preprints | 2024
    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://arxiv.org/abs/2412.00018v1
    Preprints | 2024
    Duwenig A; Li B, 2024, The Zappa-Szép product of twisted groupoids, http://arxiv.org/abs/2406.00466v1
    Preprints | 2024
    Duwenig A; Williams DP; Zimmerman J, 2024, Non-traditional Cartan subalgebras in twisted groupoid C*-algebras, http://dx.doi.org/10.1093/imrn/rnaf011
    Preprints | 2023
    Duwenig A; Sims A, 2023, Smooth Cartan triples and Lie twists over Hausdorff étale Lie groupoids, http://arxiv.org/abs/2309.09177v3
    Preprints | 2023
    Duwenig A, 2023, The Imprimitivity Fell Bundle, http://dx.doi.org/10.4153/S0008414X24000907
    Preprints | 2022
    Courtney K; Duwenig A; Georgescu MC; Huef AA; Viola MG, 2022, Alexandrov groupoids and the nuclear dimension of twisted groupoid $\mathrm{C}^*$-algebras, http://dx.doi.org/10.1016/j.jfa.2024.110372
    Preprints | 2022
    Duwenig A; Li B, 2022, Imprimitivity theorems and self-similar actions on Fell bundles, http://arxiv.org/abs/2208.01124v3
    Preprints | 2022
    Duwenig A; Williams DP; Zimmerman J, 2022, Renault's $j$-map for Fell bundle $C^*$-algebras, http://arxiv.org/abs/2203.01165v1
    Preprints | 2021
    Duwenig A; Li B, 2021, Equivalence of Fell bundles is an equivalence relation, http://arxiv.org/abs/2110.06343v2
    Preprints | 2020
    Duwenig A; Gillaspy E; Norton R; Reznikoff S; Wright S, 2020, Cartan subalgebras for non-principal twisted groupoid $C^*$-algebras, http://dx.doi.org/10.1016/j.jfa.2020.108611
    Preprints | 2020
    Duwenig A; Gillaspy E; Norton R, 2020, Analyzing the Weyl construction for dynamical Cartan subalgebras, http://dx.doi.org/10.1093/imrn/rnab114
    Preprints | 2020
    Duwenig A; Li B, 2020, Zappa-Szép product of a Fell bundle and a groupoid, http://dx.doi.org/10.1016/j.jfa.2021.109268
    Preprints | 2019
    Duwenig A; Emerson H, 2019, Transversals, duality, and irrational rotation, http://dx.doi.org/10.1090/btran/54
    Preprints | 2018
    Duwenig A, 2018, Elliptic Operators and K-Homology, http://dx.doi.org/10.1216/rmj.2020.50.91

"Twisted algebras for Zappa–Szép products of categories" - ARC Discovery Project (DP250100297), held together with Aidan Sims, Jacqui Ramagge, Nathan Brownlowe, and Becky Armstrong

My pre-prints on arXiv

My ORCiD page

 

Recordings of talks:

"Smooth Cartan triples and Lie groupoid twists" about work with Aidan Sims, given in October 2023 at the Fields Institute (Toronto, CA)

"The Zappa–Szép product of a Fell bundle by a groupoid" about work with Boyu Li, given in May 2023 at the Hausdorff Center for Mathematics (Bonn, DE)

"Non-commutative Poincaré duality of the irrational rotation algebra" about my dissertation, given in September 2020 at the ONCG Seminar at TAMU

Since August 2020, I have been a Junior Mentor of the global Operator Algebras Mentor Network.
Between August 2020 and July 2023 and since August 2025, I have been serving on the Board of Directors of the OAMN.
As part of the first OAMN Board and together with Viviana Meschitti, we recently published this open-access paper on the effects of the OAMN.