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20032005
most citedUncovering the overlapping community structure of complex networks in nature and society

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math.SG2005

Tight contact structures on some small Seifert fibered 3--manifolds

Paolo Ghiggini, Paolo Lisca, Andras I. Stipsicz

We classify tight contact structures on the small Seifert fibered 3--manifold M(-1; r_1, r_2, r_3) with r_i in (0,1) and r_1, r_2 \geq 1/2. The result is obtained by combining conv…

math.SG2005

Notes on the contact Ozsvath--Szabo invariants

Paolo Lisca, Andras I. Stipsicz

We prove various results on contact structures obtained by contact surgery on a single Legendrian knot in the standard contact three--sphere. Our main tool are the contact Ozsvath-…