Exotic symplectic manifolds from Lefschetz fibrations

Mathematics – Symplectic Geometry

Scientific paper

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18 pages, 6 figures

Scientific paper

In this paper we construct, in all odd complex dimensions, pairs of Liouville domains W_0 and W_1 which are diffeomorphic to the cotangent bundle of the sphere with one extra subcritical handle, but are not symplectomorphic. While W_0 is symplectically very similar to the cotangent bundle itself, W_1 is more unusual. We use Seidel's exact triangles for Floer cohomology to show that the wrapped Fukaya category of W_1 is trivial. As a corollary we obtain that W1 contains no compact exact Lagrangian submanifolds.

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