Summer School on Topological Full Groups of Ample Groupoids

This summer school, running from the 27th to the 31st of July 2026, explores the theory of topological full groups and ample groupoids, with a focus on their connections to Thompson's group V and its generalisations. The programme begins with introductory lectures, developing the basic objects and constructions, and finishes with a series of mini-courses by guest speakers that discuss, amongst other properties, the simplicity, finite generation and homology of various analogues of Thompson's groups.

A recurring theme will be the way in which generalised Thompson's groups serve as unifying objects from several areas of mathematics, including but not limited to dynamics, geometric group theory and homotopy theory. The aim is to give participants a working introduction to the subject, a view of the current state of research in the field, and an opportunity to get in touch with experts and other interested young researchers.

Schedule

The first 2½ days (27th until 29th) will consist of introductory talks on the basic material of ample groupoids and topological full groups. The final 2½ days (29th until 31st) will consist of three series of talks given by the confirmed speakers. In between each pair of talks will be either a coffee or lunch break.

  Monday Tuesday Wednesday Thursday Friday
9:00-9:30 Registration        
9:30-10:30 Preparatory Talk 1 Preparatory Talk 6 Preparatory Talk 11 Main Series 1 Talk 2 Main Series 3 Talk 3
10:30-11:00 Coffee Break Coffee Break Coffee Break Coffee Break Coffee Break
11:00-12:00 Preparatory Talk 2 Preparatory Talk 7 Preparatory Talk 12 Main Series 2 Talk 2 Main Series 1 Talk 4
12:00-14:00 Lunch Lunch Lunch Lunch Lunch
14:00-15:00 Preparatory Talk 3 Preparatory Talk 8 Main Series 1 Talk 1 Main Series 3 Talk 2 Main Series 2 Talk 4
15:00-15:30 Coffee Break Coffee Break Coffee Break Coffee Break Coffee Break
15:30-16:30 Preparatory Talk 4 Preparatory Talk 9 Main Series 2 Talk 1 Main Series 1 Talk 3 Main Series 3 Talk 4
16:30-17:00 Coffee Break Coffee Break Coffee Break Coffee Break  
17:00-18:00 Preparatory Talk 5 Preparatory Talk 10 Main Series 3 Talk 1 Main Series 2 Talk 3  
19:00       Dinner  
Confirmed Speakers
Registration

Registration for this school is now open and is free! Visit the link here to register your attendance. 

Travel and Accommodation

Details on traveling to Karlsruhe by plane can be found at the following link. From Karlsruhe Hauptbahnhof, the trams 2, S4, S5, S7 and S8 will all travel to Kronenplatz every 10 minutes, which is the closest station to our department.

If you require help finding accommodation for the week, please contact us using the email address below.

Please note that we are unable to provide funding for travel, accommodation and lunches/dinners.

Contact

For any queries about the school, please email nathan.hughes∂kit.edu.