Torsion and Open Book Decompositions

  title={Torsion and Open Book Decompositions},
  author={John B. Etnyre and David Shea Vela-Vick},
  • John B. Etnyre, David Shea Vela-Vick
  • Published 2009
  • Mathematics
  • We show that if (B, π) is an open book decomposition of a contact 3-manifold (Y, ξ), then the complement of the binding B has no Giroux torsion and no virtual Giroux torsion. We also prove that the sutured Heegaard-Floer c-bar invariant of the binding of an open book is nonzero. 

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