Tropical Lagrangian Hypersurfaces are Unobstructed

preprint2020arXivOpen access

Abstract

We produce for each tropical hypersurface V(ϕ)⊂Q=RnV(ϕ)\subset Q=\mathbb{R}^n a Lagrangian L(ϕ)⊂(C∗)nL(ϕ)\subset (\mathbb{C}^*)^n whose moment map projection is a tropical amoeba of V(ϕ)V(ϕ). When these Lagrangians are admissible in the Fukaya-Seidel category, we show that they are unobstructed objects of the Fukaya category, and mirror to sheaves supported on complex hypersurfaces in a toric mirror.

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