English

Perverse sheaves on smooth toric varieties and stacks

Algebraic Geometry 2024-12-30 v1

Abstract

It is usually not straightforward to work with the category of perverse sheaves on a variety using only its definition as a heart of a tt-structure. In this paper, the category of perverse sheaves on a smooth toric variety with its orbit stratification is described explicitly as a category of finite-dimensional modules over an algebra. An analogous result is also established for various categories of equivariant perverse sheaves, which in particular gives a description of perverse sheaves on toric orbifolds, and we also compare the derived category of the category of perverse sheaves to the derived category of constructible sheaves.

Keywords

Cite

@article{arxiv.2412.19787,
  title  = {Perverse sheaves on smooth toric varieties and stacks},
  author = {Sergey Guminov},
  journal= {arXiv preprint arXiv:2412.19787},
  year   = {2024}
}
R2 v1 2026-06-28T20:50:06.489Z