Tim Römer: Symmetries and local-global principles in discrete geometry
Time: Tue 2021-11-02 10.15
Location: KTH, 3721, Lindstedtsvägen 25 and Zoom (meeting ID: 659 3743 5667)
Participating: Tim Römer (University of Osnabrück)
Abstract
We consider cones and monoids in infinite dimensional spaces which are invariant under actions of symmetric groups. A key idea is to study these objects via associated symmetric chains of cones/monoids in finite dimensional spaces and to formulate related local-global principles. In this talk we discuss recent results and open questions on these topics.