English

Toric Mirror Symmetry for Homotopy Theorists

Algebraic Geometry 2025-01-14 v1 Algebraic Topology Category Theory

Abstract

We construct functors sending torus-equivariant quasi-coherent sheaves on toric schemes over the sphere spectrum to constructible sheaves of spectra on real vector spaces. This provides a spectral lift of the toric homolgoical mirror symmetry theorem of Fang-Liu-Treumann-Zaslow (arXiv:1007.0053). Along the way, we obtain symmetric monoidal structures and functoriality results concerning those functors, which are new even over a field kk. We also explain how the `non-equivariant' version of the theorem would follow from this functoriality via the de-equivariantization technique. As a concrete application, we obtain an alternative proof of Beilinson's linear algebraic description of quasi-coherent sheaves on projective spaces with spectral coefficients.

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Cite

@article{arxiv.2501.06649,
  title  = {Toric Mirror Symmetry for Homotopy Theorists},
  author = {Qingyuan Bai and Yuxuan Hu},
  journal= {arXiv preprint arXiv:2501.06649},
  year   = {2025}
}

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78 pages