I'm a mathematician interested in discrete groups, usually as subgroups of Lie groups. I study the geometry of the associated locally symmetric spaces, traces on these groups and their associated operator algebras.
I am a Junior Research Fellow (postdoc) at Merton College, University of Oxford. Before that, I completed my PhD under the supervision of Prof. Tsachik Gelander.
Papers
Sparse Random Covers and Growth of Torsion in First Homology, 2026. Submitted. arXiv.
A Product-Neighbourhood Criterion for Fixed Price One, 2026. Submitted. arXiv.
Invariant Trace Simplices and Relative Property (T), 2026. Submitted. arXiv.
Betti Numbers of Negatively Curved Orbifolds with Coefficients in Arbitrary Fields, Joint with Guy Kapon (2026). Submitted. arXiv.
Spectral Gap and Character Limits in Arithmetic Groups, Joint with Arie Levit and Itamar Vigdorovich (2023). To appear in Groups, Geometry, and Dynamics. arXiv.
Work in Progress and Drafts
Affine Groups Acting Properly Discontinuously, (2025), Joint with Herbert Abels, Grigory Margulis and Gregory Soifer. Submitted Version.
Non-C*-superrigid groups. Joint with Jakub Curda and Shanshan Hua. Draft.
Distinguishing Quasi-isometry Groups by Arithmetic Subgroups. Draft.
Normal sub-semigroups of SLₙ(ℤ) for n ≥ 3 are subgroups. Joint with Roberto Rubio. Draft.
Prescribed Exponential Torsion Growth. Joint with Stepan Alexendrov and Tsachik Gelander. Draft.
Contact
Email Address: raz.slutsky(at)merton.ox.ac.uk