Following recent developments and in accordance with the restrictions imposed by our authorities and the EPFL, this event is cancelled.
This workshop is concerned both with the structure theory of locally compact groups acting on discrete structures, and various notions of self-similarity as seen e.g. in Grigorchuk's and Sidki's groups. A crucial link between the two subjects stems from Baumgartner-Willis' tree representation theorem which associates a self-similar group acting on a regular rooted tree to each element of a totally disconnected locally compact group whose scale is different from 1. This puts classical examples of self-similar groups into a new classification context and provides a potential source of new examples.
This workshop aims to foster the exchange of results, examples and questions, as well as to open and strengthen collaborations.