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Tropical Lagrangians and Homological Mirror Symmetry
- Hicks, Jeffrey Stephen
- Advisor(s): Auroux, Denis
Abstract
We produce for each tropical hypersurface $V(\phi)\subset Q=\RR^n$ a Lagrangian $L(\phi)\subset (\CC^*)^n$ whose moment map projection is a tropical amoeba of $V(\phi)$. When these Lagrangians are admissible in the Fukaya-Seidel category, we show that they are mirror to hypersurfaces in a toric mirror. These constructions are extended to tropical varieties given by locally planar intersections, and to symplectic 4-manifolds with almost toric fibrations. We also explore relations to wall-crossing, dimer models, and Lefschetz fibrations. A complete example is worked out for the mirror pair $(\CP^2\setminus E, W), X_{9111}$.
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