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math.SG2002
Tight, not semi--fillable contact circle bundles
Paolo Lisca, Andras I. Stipsicz
Extending our earlier results, we prove that certain tight contact structures on circle bundles over surfaces are not symplectically semi--fillable, thus confirming a conjecture of…
math.SG2002
On Lens Spaces and Their Symplectic Fillings
Paolo Lisca
The standard contact structure on the three-sphere is invariant under the action of the cyclic group of order p yielding the lens space L(p,q). Therefore, every lens space carries…