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

Name: Uniqueness of symplectic canonical class, surface cone and symplectic cone of 4-manifolds with b^+=1
Uploaded: 2000-01-01
Description: 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.
Tianjun Li; Ai-Ko Liu
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