Mathematics – Symplectic Geometry
Scientific paper
2003-07-25
Algebraic and Geometric Topology 4 (2004) 199-217
Mathematics
Symplectic Geometry
Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol4/agt-4-12.abs.html
Scientific paper
Using contact surgery we define families of contact structures on certain Seifert fibered three-manifolds. We prove that all these contact structures are tight using contact Ozsath-Szabo invariants. We use these examples to show that, given a natural number n, there exists a Seifert fibered three-manifold carrying at least n pairwise non-isomorphic tight, not fillable contact structures.
Lisca Paolo
Stipsicz András I.
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