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Tim Römer: Symmetries and local-global principles in discrete geometry

Tid: Ti 2021-11-02 kl 10.15

Plats: KTH, 3721, Lindstedtsvägen 25 and Zoom (meeting ID: 659 3743 5667)

Föreläsare: 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.