27.11.2025, 16:15  –  Raum 1.22, Haus 9
Forschungsseminar Differentialgeometrie

Spectral flow and the Atiyah-Patodi-Singer index theorem

Remo Ziemke (UP)

We establish a formula for the spectral flow of a smooth family of twisted Dirac operators on a closed odd-dimensional Riemannian spin manifold. The spectral flow is expressed in terms of the Â-form... 

28.11.2025, 11:00 - cancelled  –  Campus Golm, Building 9, Room 2.22 and via Zoom
Arbeitsgruppenseminar Analysis

How to measure quantum fields? Implementing a causal measurement scheme

Jan Mandrysch (Wien) - cancelled

Unfortunately we had to cancel this talk for his time. We hope that this talk will take place at a later date.

Abstract:   While measurement processes in standard quantum mechanics are well... 

28.11.2025, 13:30 Uhr  –  Haus 9, Raum 2.22
Forschungsseminar Diskrete Spektraltheorie

Characterizations of p-Parabolicity on Graphs

Florian Fischer

We study p-energy functionals on infinite locally summable graphs for \(p \in (1,\infty) \) and discuss that many well-known characterizations for a parabolic space are also true in this discrete,... 

03.12.2025, 14:30  –  Haus 9, Raum 2.22 + Zoom
Institutsrat

Institutsratssitzung 03.12.2025

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04.12.2025, 14:00-15:30  –  2.22
Seminar Geometry and Physics

Static and Stationary Vacuum Extensions Realizing Bartnik Boundary Data: Local Well-Posedness near Schwarzschild Spheres

Ahmed Ellithy

We consider the Bartnik extension problem, which originates from Bartink's definition of quasi-local mass. In this problem, we consider Bartnik boundary data on a topological 2-sphere (induced metric...