07.12. bis 07.12.2021, 12:15-13:45  –  room C9A03 Tübingen, room 2.09.2.22 Golm
Geometric Analysis, Differential Geometry and Relativity

Rigidity of the spectral gap for non-negatively curved RCD spaces

Christian Ketterer

Rigidity of the spectral gap for non-negatively curved RCD spaces

First I will review results about the connection between spectral estimates and Ricci curvature for Riemannian manifolds and metric... 

09.12.2021, 16:15  –  Raum 2.9.0.12
Seminar Geometrie

The long neck principle

Rubens Longhi

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10.12.2021, 11:00  –  2.22 und online
Arbeitsgruppenseminar Analysis

Renormalization and Geometry in the Grosse-Wulkenhaar Model

Alexander Hock (Oxford University)

The Grosse-Wulkenhaar model (GW) is a euclidean scalar quantum field theory with quartic interaction on a non-commutative space, more precisely on the Moyal space. The most interesting property of... 

13.12.2021, 16:15  –  Online via zoom
Forschungsseminar Differentialgeometrie

Global hyperbolicity in general relativity and in less regular theories

Ettore Minguzzi (Florence)

I discuss the properties of global hyperbolicity in general relativity and how its definition should be modified under low regularity assumptions.

Zoom access data are available at this moodle.

14.12. bis 14.12.2021, 12:15-13:45  –  room C9A03 Tübingen, room 2.09.2.22 Potsdam Golm
Geometric Analysis, Differential Geometry and Relativity

Local and global scalar curvature rigidity of Einstein manifolds

Klaus Kröncke

An Einstein manifold is called scalar curvature rigid if there are no compactly supported volume-preserving deformation of the metric which increase the scalar curvature. We give various...