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)
Thomas Körber
In this talk, I will present recent work (joint with M. Eichmair) on large area-constrained Willmore surfaces in asymptotically Schwarzschild 3-manifolds. Using the method of Lyapunov-Schmidt reduction, we prove that the end of such a manifold is foliated by distinguished area-constrained Willmore spheres. The leaves are the unique area-constrained Willmore spheres with large area, non-negative Hawking mass, and distance to the center of the manifold at least a small multiple of the area radius. I will also discuss recent results on the geometric center of mass of this foliation.