English

Categorical Torelli theorem for hypersurfaces

Algebraic Geometry 2022-08-30 v1

Abstract

Let XPn+1X \subset \mathbb{P}^{n+1} be a smooth Fano hypersurface of dimension nn and degree dd. The derived category of coherent sheaves on XX contains an interesting subcategory called the Kuznetsov component AX\mathcal{A}_X. We show that this subcategory, together with a certain autoequivalence called the rotation functor, determines XX uniquely if d>3d > 3 or if d=3d = 3 and n>3n > 3. This generalizes a result by D. Huybrechts and J. Rennemo, who proved the same statement under the additional assumption that dd divides n+2n+2.

Keywords

Cite

@article{arxiv.2208.13604,
  title  = {Categorical Torelli theorem for hypersurfaces},
  author = {Dmitrii Pirozhkov},
  journal= {arXiv preprint arXiv:2208.13604},
  year   = {2022}
}

Comments

14 pages; comments welcome

R2 v1 2026-06-25T02:03:25.400Z