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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...

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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...

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