02.03.2026, 14:00  –  Campus Golm, Haus 9, Raum 2.22
Habilitationskolloquium

The butterflies effect

Siegfried Beckus

Spectral butterflies are numerical visualizations of parameter-dependent Schrödinger-type operators, most prominently the Hofstadter butterfly. Their striking fractality has drawn significant... 

05.03.2026, 10:15  –  Haus 9, Raum 1.22
Forschungsseminar: Gruppen und Operatoralgebren

The quantum metric structure of q-deformed spaces

David Kyed (University of Southern Denmark)

The talk will survey a number of advances in the understanding of the quantum metric structure on q-deformations of classical spaces, such as the 2-sphere and the Lie group SU(2), that has emerged... 

06.03.2026, 11:00  –  Haus 9, Raum 2.22
Verteidigung Masterarbeit / Master's Thesis Defence

Property RD of right-angled Coxeter groups and their Hecke algebras

Robert Müller

In 1979, Uffe Haagerup showed that in a free group the reduced norm can be bounded by a weighted norm of square summable sequences. Later in 1990 Jolissaint showed a similar estimate for the group of... 

16.04.2026, 16:15
Verteidigung Masterarbeit / Master's Thesis Defence

Lukas Rode

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16.04.2026, 16:15
Forschungsseminar Differentialgeometrie

blockiert für Verteidigung

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