English

Towards a good definition of algebraically overtwisted

Symplectic Geometry 2010-02-14 v2

Abstract

Symplectic field theory (SFT) is a collection of homology theories that provide invariants for contact manifolds. We give a proof that vanishing of any one of either contact homology, rational SFT or (full) SFT are equivalent. We call a manifold for which these theories vanish "algebraically overtwisted".

Keywords

Cite

@article{arxiv.0709.3415,
  title  = {Towards a good definition of algebraically overtwisted},
  author = {Frédéric Bourgeois and Klaus Niederkrüger},
  journal= {arXiv preprint arXiv:0709.3415},
  year   = {2010}
}

Comments

9 pages; improved description of SFT, simplified proof, added marked points in main theorem

R2 v1 2026-06-21T09:20:04.024Z