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arXiv · 1804.06386

Generating the Fukaya categories of compact toric varieties

Jack Smith
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Abstract

Let $X$ be a compact toric variety. The quantum cohomology of $X$ decomposes as a direct sum, and associated to each summand $Q$ is a toric fibre $L_Q$ with rank $1$ local system. By building an explicit twisted-complex-like object, we show that on $Q$ the Kodaira-Spencer isomorphism of Fukaya-Oh-Ohta-Ono factors through the closed-open string map to the Hochschild cohomology of $L_Q$. We deduce that the latter is injective and hence, assuming an appropriate version of Abouzaid's criterion, that $L_Q$ split generates the corresponding summand of the Fukaya category.

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Jack Smith. 2018-04-17. Generating the Fukaya categories of compact toric varieties. https://arxiv.org/abs/1804.06386

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