Symplectic 4-manifolds of the form S^1 x N
Presenter
November 3, 2011
Keywords:
- Shiing-Shen Chern
- differential geometry
- symplectic geometry
- circle bundle
- fibrations
- low-dimensional topology
MSC:
- 53-xx
- 53Cxx
- 53D05
- 53Dxx
- 14Dxx
- 53D30
Abstract
Thurston showed in 1976 that if a 3-manifold N fibers over the circle, then S^1 x N supports a symplectic structure. We show that the converse holds: if S^1 x N is symplectic, then N fibers over S^1. This is joint work with Stefano Vidussi.