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Session

DG3: Differential Geometry Location: A704 Session Chair: Oliver Schnürer Session Chair: Miles Simon

Presentation 1

New evidence for a conjecture of Stolz Michael Wiemeler Universität Münster, Germany Stolz conjectured that the Witten genus of a closed string manifold with positive Ricci curvature vanishes. We will discuss a recent result that confirms the conjecture for string complete intersections X in Fano manifolds M such that M has second Betti number one and admits a smooth effective action of a two-dimensional torus.