02.07.2025, 9:15 - 10:15 Uhr  –  2.09.0.17
Forschungsseminar: Gruppen und Operatoralgebren

Surjunctive Groups

Rico Linke

Surjunktive Gruppen sind ein Forschungsgebiet mit großem Interesse, da weder eine Gruppe bekannt ist, welche nicht surjunktiv ist, noch die Surjuntivität aller Gruppen bewiesen wurde. In diesem Vortag... 

02.07.2025, 13:00  –  Haus 9, Raum 0.17 und Zoom
Forschungsseminar Diskrete Spektraltheorie

A gradient flow that is none: Heat flow with Wentzell boundary conditions

Marie-Christin Bormann (Uni Leipzig)

Abstract: We establish a representation of the heat flow with Wentzell boundary conditions on smooth domains as gradient descent dynamics for the entropy in a suitably extended Otto manifold of... 

03.07.2025, 16:15  –  Raum 1.22
Forschungsseminar Differentialgeometrie

Heat and resolvent expansions in the noncommutative case

Matthias Lesch (Bonn)

Heat and resolvent expansions are a fundamental tool in spectral geometry and index theory. In the noncommutative world (á la Connes) such expansions exhibit fundamentally new structures. I will... 

10.07.2025, 16:15  –  Raum 1.22
Forschungsseminar Differentialgeometrie

Cancellation properties of exotic 4-dimensional positive scalar curvature metrics

Johannes Ebert (Münster)

It is well-known that 4-dimensional smooth topology offers many exotic phenomena, typically detected by means of gauge theory, and it is also well-known
that these exoticities are very unstable when... 

16.07.2025, 14:30  –  Haus 9, Raum 2.22 + Zoom
Institutsrat

Institutsratssitzung 16.07.2025

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