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Sandra Huppert

Oberseminar Differentialgeometrie: Philipp Reiser (Université de Fribourg), Vortrag: Surgery and positive intermediate Ricci curvature

Monday, 22.05.2023 16:15 im Raum SRZ 214

Mathematik und Informatik

Abstract: We consider intermediate Ricci curvatures which interpolate between sectional curvature and Ricci curvature. In this talk I will show that the existence of a Riemannian metric of positive intermediate Ricci curvature is preserved under certain types of surgeries, i.e. certain cut and paste operations on the given manifold. As applications we obtain a wide range of new examples of manifolds with a Riemannian metric of positive intermediate Ricci curvature, including all exotic spheres that bound parallelisable manifolds, as well as results on the corresponding moduli spaces of metrics. This is joint work with David Wraith.



Angelegt am Thursday, 16.03.2023 11:30 von Sandra Huppert
Geändert am Tuesday, 28.03.2023 08:44 von Sandra Huppert
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