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About me
I am a postdoctoral fellow at the Department of Mathematical Sciences of Chalmers University of Technology and the University of Gothenburg.
Before that, I was a PhD student in mathematics at the University of Münster, under the supervision of David Kerr.
My research interests include topological dynamics and their interaction with operator algebras, as well as measurable dynamics, entropy, and orbit equivalence.
If you meet me, please call me Spyros (or Don)!
CV (updated 2026-07-07)
Publications
Topological full groups and stable rank one with D. Kerr
preprint; arXiv
Quantitative orbit equivalence for ℤ-odometers with P. Naryshkin
Adv. Math. 494 (2026), 110957; arXiv
McDuff factors from amenable actions and dynamical alternating groups with D. Kerr
Groups Geom. Dyn. 19(2) (2025), 415–429; arXivAlmost finiteness and groups of dynamical origin with P. Naryshkin
Int. Math. Res. Not. IMRN 2025(3) (2025), rnaf016; arXivBauer simplices and the small boundary property with D. Kerr and G. Kopsacheilis
J. Funct. Anal. 287(11) (2024), 110619; arXivSeminars
I am currently (co-)organizing the Analysis & Probability Seminar.
Upcoming events
31 Aug – 4 Sept 2026. Chalmers University of Technology and University of Gothenburg, Gothenburg, Sweden
Operator Algebras: Approximation, Rigidity and Dynamics
14 Sept – 4 Dec 2026. Institute Henri Poincaré, Paris, France
Contact
address:
Department of Mathematical Sciences
Chalmers University of Technology and University of Gothenburg
Chalmers Tvärgata 3, SE-412 96 Göteborg, Sweden
room MV:L-3100
email:
petrakos [at] chalmers [dot] se
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