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Universität Potsdam
Institut für Mathematik
Campus Golm, Haus 9
Karl-Liebknecht-Str. 24-25
D-14476 Potsdam

Aktivitäten

09.01.2026, 10:00  –  Campus Golm, Building 9, Room 2.22
Verteidigung Masterarbeit / Master's Thesis Defence

Häkeln als Brücke zur Geometrie: Mit ausgewählten Häkelmodellen Geometrie (für Kinder) Anfassbar machen.

Neele Riemer

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12.01.2026, 14:00  –  2.14.0.21
Forschungsseminar: Gruppen und Operatoralgebren

Cartan subalgebras in C*-algebras of virtually abelian groups.

Jakub Curda (University of Oxford)

This talk is motivated by C*-superrigidity - the question of whether a group can be recovered from its group C*-algebra. Since every torsion free abelian group is isomorphic to the group of path... 

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14.01.2026, 14:00 - 15:15  –  Campus Golm, Building 9, Room 2.22 and via Zoom
Institutskolloquium

Getting to the chore of things

Christian Mercat (Claude Bernard University Lyon 1)

Understanding a phenomena is trying to identify what is important and what is not, in a given perspective, then making links between them. No need to wait for a master degree, with partial... 

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16.01.2026, 11:00  –  Campus Golm, Building 9, Room 2.22 and via Zoom
Arbeitsgruppenseminar Analysis

Boundaries, corners and edge modes: semi-local observables for electromagnetism

Daan Janssen (York, UK)

For gauge field theories on spacetimes with (asymptotic) boundaries, the gauge transformations acting non-trivially at boundaries and/or corners have a distinguished role compared to those acting... 

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22.01.2026, 16:15 Uhr  –  Raum 1.22, Haus 9
Forschungsseminar Differentialgeometrie

Index theory and spectral flow of Toeplitz operators

Koen van den Dungen (Bonn)

Dirac-Schrödinger operators (or Callias-type operators) are given by Dirac-type operators on a smooth manifold, together with a potential. I will describe a general setting with arbitrary signatures... 

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