Conferences - Seminars
26APR
13:00-14:00
MA A3 30
Groups acting on rooted trees and representations on the boundary
Every action of a group on a rooted tree induces an action on the boundary of the tree. This action yields various representations of the group on spaces of functions on the boundary. In this talk we discuss the structure of such representations. After reviewing of the basic concepts, we will introduce locally 2-transitive actions ...
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By Steffen Kionke (KIT)
27APR
15:15-16:00
MA A1 10
A Bayesian General Linear Modeling Approach to Cortical Surface fMRI Data Analysis
By Ass. Prof. David Bolin, Chalmers University of Technology
01MAY
10:15-11:30
CM 1 113
Topology Seminar: C*-superrigidiity of nilpotent groups
It is a classical problem to recover a discrete group from various rings or algebras associated with it, such as the integral group ring (cf. the Whitehead group and the Whitehead torsion). By analogy, in an operator algebraic framework we want to recover torsion-free groups from certain topological completions of the complex group ring, such ...
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By Sven Raum (EPFL)