On noncollapsed almost Ricci-flat 4-manifolds
Speaker:
Vitali Kapovitch (University of Toronto)
Date and Time:
Thursday, November 17, 2016 - 3:00pm to 4:00pm
Location:
Fields Institute, Stewart Library
Abstract:
We prove that a non-collapsed spin almost Ricci-flat 4-manifold of nonzero $\hat A$ genus is diffeomorphic to a $K3$ surface. This is joint work with John Lott.
