Abstract
Given a smooth, closed, oriented 4–manifold and such that , a closed –form is constructed, Poincaré dual to , which is symplectic on the complement of a finite set of unknotted circles . The number of circles, counted with sign, is given by , where is a certain structure naturally associated to .
Citation
David T Gay. Robion Kirby. "Constructing symplectic forms on 4–manifolds which vanish on circles." Geom. Topol. 8 (2) 743 - 777, 2004. https://doi.org/10.2140/gt.2004.8.743
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