UCLA

Manolescu and Ozsváth have recently developed a formula for calculating the Heegaard Floer homologies of integral surgery on a link. We use their link surgery formula to give a complete calculation (mod 2) of the infinity flavor of Heegaard Floer homology for a torsion Spin^c structure on any closed, orientable three-manifold in terms of the cup product structure on its integral cohomology ring.