Uniqueness of symplectic canonical class, surface cone and symplectic cone of 4-manifolds with b^+=1

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Let M be a closed oriented smooth 4-manifold admitting symplectic structures. If M is minimal and has b^+=1, we prove that there is a unique symplectic canonical class up to sign, and any real second cohomology class of positive square is represented by symplectic forms. Similar results hold when M is not minimal.
36 pages, typos corrected, references added, improved expositions

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Symplectic Geometry, Algebraic Geometry, Geometric Topology

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http://salesiana.dossiersoluciones.com/handle/123456789/60523

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0012048
 http://arxiv.org/abs/math/0012048

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arXiv