University of Münster
CRIS@UM
DE | EN

Professorship of theoretical mathematics (Prof. Geffen)

Status: Organisation is active
Address: 
Einsteinstr. 62
48149 Münster
Germany

Publications

Stable rank one in nonnuclear crossed products
Bell, Jamie; Geffen, Shirly; Kerr, David (2025)
In: arXiv e-prints
Research article in digital collection | Preprint | submitted / under review
Dynamical comparison and Z-stability for crossed products of simple C*-algebras
Gardella, Eusebio; Geffen, Shirly; Naryshkin, Petr; Vaccaro, Andrea (2024)
In: Advances in Mathematics, 438, 109471. doi:10.1016/j.aim.2023.109471
Research article (journal) | Peer reviewed | Published
Tracially amenable actions and purely infinite crossed products
Gardella, Eusebio; Geffen, Shirly; Kranz, Julian; Naryshkin, Petr; Vaccaro, Andrea (2024)
In: Mathematische Annalen, 390, 3665-3690. doi:10.1007/s00208-024-02833-9
Research article (journal) | Peer reviewed | Published
Classifiability of crossed products by nonamenable groups
Gardella, Eusebio; Geffen, Shirly; Kranz, Julian; Naryshkin, Petr (2023)
In: Journal für die reine und angewandte Mathematik, 797, 285-312. doi:10.1515/crelle-2023-0012/html
Research article (journal) | Peer reviewed | Published
Simplicity of crossed products by FC-hypercentral groups
Geffen, Shirly; Ursu, Dan (2023)
In: arXiv:2304.07852.
Research article in digital collection | Preprint | submitted / under review
Show all publications (9)

Projects

EXC 2044 - T03: Models and universes
Duration: 01/01/2026 - 31/12/2032 | 1st Funding period
Funded by: DFG - Cluster of Excellence
Type of project: Subproject in DFG-joint project hosted at University of Münster
EXC 2044 - T04: Groups and actions
Duration: 01/01/2026 - 31/12/2032 | 1st Funding period
Funded by: DFG - Cluster of Excellence
Type of project: Subproject in DFG-joint project hosted at University of Münster
EXC 2044 - T08: Random discrete structures and their limits
Duration: 01/01/2026 - 31/12/2032 | 1st Funding period
Funded by: DFG - Cluster of Excellence
Type of project: Subproject in DFG-joint project hosted at University of Münster
CRC 1442 - D01: Amenable dynamics via C*-algebras
Duration: 01/07/2024 - 30/06/2028 | 2nd Funding period
Funded by: DFG - Collaborative Research Centre
Type of project: Subproject in DFG-joint project hosted at University of Münster
CRC 1442 - D05: C*-algebras, groups, and dynamics: beyond amenability
Duration: 01/07/2024 - 30/06/2028 | 1st Funding period
Funded by: DFG - Collaborative Research Centre
Type of project: Subproject in DFG-joint project hosted at University of Münster
Show all projects (6)

Parent organisational units