Math Papers

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Towards a good definition of algebraically overtwisted
joint work with Klaus Niederkrüger,
Expositiones Mathematicae 28 (2010), 85-100.

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Symplectic field theory (SFT) is a collection of homology theories that provide invariants for contact manifolds. We show 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.

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This paper appeared in Expositiones Mathematicae.

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