Mathematics – Symplectic Geometry
Scientific paper
2006-07-25
Algebr. Geom. Topol. 6 (2006) 2473-2508
Mathematics
Symplectic Geometry
This is the version published by Algebraic & Geometric Topology on 15 December 2006
Scientific paper
10.2140/agt.2006.6.2473
In this article, we give a first prototype-definition of overtwistedness in higher dimensions. According to this definition, a contact manifold is called "overtwisted" if it contains a "plastikstufe", a submanifold foliated by the contact structure in a certain way. In three dimensions the definition of the plastikstufe is identical to the one of the overtwisted disk. The main justification for this definition lies in the fact that the existence of a plastikstufe implies that the contact manifold does not have a (semipositive) symplectic filling.
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