Ergodic Theory and Dynamical Systems Seminar

Warwick ETDS Seminar 2026-2027

The seminars are held on Tuesdays at 14:00 in B3.02.

On seminar days we meet for lunch at 12:30 and tea at 15:00 in the common room. Everybody is welcome.

Term 1

Organizers: Jonathan Chapman , Cagri Sert , Rigoberto Zelada

06.10.2026: Matt Bowen (Warwick)

Title: Measurable matchings in Borel group actions

Abstract: We discuss the existence and applications of measurable perfect matchings in graphs defined via Borel actions of finitely generated groups on Borel probability spaces. For instance, we completely characterize amenable groups whose bipartite Schreier graphs admit measurable perfect matchings. As an application we prove that the unit circle can be partitioned into finitely many measurable pieces which can be translated to obtain a copy of the unit area circle, obtaining a new proof and generalizations of Grabowski, Mathe and Pikhurko's measurable circle squaring.

This is based on previous and upcoming work with Kun and Sabok.

13.10.2026: Zhe Wang (Dalian University of Technology, long-term visitor at Warwick)

Title: Quenched invariance principles with rates for random dynamical systems

Abstract: In this talk, we present the Wassertein convergence rate in the quenched invariance principle for random Young towers. We apply the results to a class of random dynamical systems that admit random Young towers, such as i.i.d. translations of intermittent maps.

20.10.2026: Borys Kuca (Jagiellonian University)

27.10.2026: Alexander Veselov (Loughborough)

03.11.2026: (No Seminar) - One Day Ergodic Theory Meeting the next day at Warwick

10.11.2026:

17.11.2026:

24.11.2026: Oliver Jenkinson (Queen Mary)

01.12.2026:

08.12.2026: Vadim Kaimanovich (Rennes)