Stefanie Zbinden

Stefanie Zbinden

I am currently a PostDoc at the University of Bonn under the supervision of Giles Gardam.

Before that, I completed my PhD under the supervision of Alessandro Sisto at Heriot-Watt University and graduated with a Master's degree from ETH Zürich.

I am interested in geometric group theory. In particular groups with hyperbolic features and their boundaries.

E-Mail Address: szbinden [at] math [dot] uni-bonn [dot] de

Papers and preprints

  1. Weak Morse properties in spaces with bounded combings (with C. Drutu and D. Spriano), preprint 2025
  2. A non-loxodromic Morse element in a Morse local-to-global group (with C. Abbott), preprint 2025
  3. Nearly-linear solution to the word problem for 3-manifold groups (with A. Sisto), accepted in International Mathematics Research Notices
  4. Sigma-compactness of Morse boundaries in Morse local-to-global groups and applications to stationary measures (with V. He and D. Spriano), preprint 2024
  5. (Non-)existence of Cannon-Thurston maps for Morse boundaries (with R. Charney, M. Cordes, A. Goldsborough, A. Sisto), Bulletin of the London Mathematical Society, pp 463–471, 2025
  6. Hyperbolic spaces that detect all strongly-contracting directions, preprint 2024
  7. Subgroups arising from connected components in the Morse boundary (with B. Miraftab and A. Karrer), accepted in Mathematische Zeitschrift
  8. Small cancellation groups with and without sigma-compact Morse boundary, Groups, Geometry, and Dynamics, 2024
  9. Characterising quasi-isometries of the free group (with A. Goldsborough), Algebraic & Geometric Topology, pp 5211–5219, 2024
  10. Corrigendum to "Morse Boundaries of Proper Geodesic Metric Spaces" (with M. Cordes and A. Sisto), Groups, Geometry, and Dynamics, pp 1559-1563, 2024
  11. Some properties of Markov chains on the free group 𝔽2 (with A. Goldsborough), Journal of Theoretical Probability, pp 2330-2351, 2024
  12. On the Čech cohomology of Morse boundaries (with E. Fioravanti, A. Karrer, A. Sisto), Advances in Mathematics 443, Paper No. 109601, 2024
  13. Morse boundaries of 3-manifold groups, Transactions of the AMS, pp 7175-7228, 2024
  14. Morse boundaries of graphs of groups with finite edge groups, Journal of Group Theory, pp 969-1002, 2023
  15. Embedding Algorithms for Quantum Annealers with Chimera and Pegasus Connection Topologies (with A. Bärtschi, H. Djidjev, S. Eidenbenz), ISC High Performance 2020, pp 187–206

Courses

Teaching assistant