Forschungsseminar Differentialgeometrie

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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29.01.2026, 16:15  –  Building 9, Room 1.22 (Joint session with Analysis group)
Forschungsseminar Differentialgeometrie

Equivalence between local and global Hadamard States with Robin boundary conditions on half-Minkowski spacetime

Claudio Dappiaggi (Pavia)

We construct the fundamental solutions and Hadamard states for a Klein-Gordon field in half-Minkowski spacetime with Robin boundary conditions in arbitrary dimensions using a generalisation of the... 

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05.02.2026, 16:15  –  Raum 1.22, Haus 9
Forschungsseminar Differentialgeometrie

TBA (Lockman)

Samuel Lockman (Regensburg)

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