English

On derived categories of arithmetic toric varieties

Algebraic Geometry 2019-08-14 v3

Abstract

We begin a systematic investigation of derived categories of smooth projective toric varieties defined over an arbitrary base field. We show that, in many cases, toric varieties admit full exceptional collections. Examples include all toric surfaces, all toric Fano 3-folds, some toric Fano 4-folds, the generalized del Pezzo varieties of Voskresenskii and Klyachko, and toric varieties associated to Weyl fans of type AA. Our main technical tool is a completely general Galois descent result for exceptional collections of objects on (possibly non-toric) varieties over non-closed fields.

Keywords

Cite

@article{arxiv.1709.03574,
  title  = {On derived categories of arithmetic toric varieties},
  author = {Matthew R. Ballard and Alexander Duncan and Patrick K. McFaddin},
  journal= {arXiv preprint arXiv:1709.03574},
  year   = {2019}
}
R2 v1 2026-06-22T21:39:34.107Z