21.05.2026, 14:00–16:30
– FU Berlin, Room 101
Forschungsseminar Differentialgeometrie
Interuniversity Seminar in Geometric Analysis (FU Berlin)
Peter Topping and Isabel Fernández
We derive upper eigenvalue bounds for the Dirac operator of a closed hypersurface in a manifold with Killing spinors such as Euclidean space, spheres or hyperbolic space. The bounds involve the Willmore functional. Relations with the Willmore inequality are briefly discussed. In higher codimension we obtain bounds on the eigenvalues of the Dirac operator of the submanifold twisted with the spinor bundle of the normal bundle.