Symplectic structures on 4-manifolds with a free S^1-action

Stefan Friedl (Universitaet zu Koeln)

Monday 6th February, 2012 16:30-17:30 416


Given a 4-manifold with a free circle action we will give complete description of the second cohomology classes which can be realized by symplectic forms. This is joint work with Stefano Vidussi.

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