English

Twisted Polytope Sheaves and Coherent-Constructible Correspondence for Toric Varieties

Algebraic Geometry 2017-01-04 v1 Differential Geometry

Abstract

Given a smooth projective toric variety XΣX_\Sigma of complex dimension nn, Fang-Liu-Treumann-Zaslow \cite{FLTZ} showed that there is a quasi-embedding of the differential graded (dg) derived category of coherent sheaves Coh(XΣ)Coh(X_\Sigma) into the dg derived category of constructible sheaves on a torus Sh(Tn,ΛΣ)Sh(T^n, \Lambda_\Sigma). Recently, Kuwagaki \cite{Ku2} proved that the quasi-embedding is a quasi-equivalence, and generalized the result to toric stacks. Here we give a different proof in the smooth projective case, using non-characteristic deformation of sheaves to find twisted polytope sheaves that co-represent the stalk functors.

Keywords

Cite

@article{arxiv.1701.00689,
  title  = {Twisted Polytope Sheaves and Coherent-Constructible Correspondence for Toric Varieties},
  author = {Peng Zhou},
  journal= {arXiv preprint arXiv:1701.00689},
  year   = {2017}
}

Comments

5 figures, 16 pages