English

Derived categories of noncommutative quadrics and Hilbert squares

Algebraic Geometry 2018-11-26 v2 Quantum Algebra Rings and Algebras Representation Theory

Abstract

A noncommutative deformation of a quadric surface is usually described by a three-dimensional cubic Artin-Schelter regular algebra. In this paper we show that for such an algebra its bounded derived category embeds into the bounded derived category of a commutative deformation of the Hilbert scheme of two points on the quadric. This is the second example in support of a conjecture by Orlov. Based on this example, we formulate an infinitesimal version of the conjecture, and provide some evidence in the case of smooth projective surfaces.

Keywords

Cite

@article{arxiv.1605.02795,
  title  = {Derived categories of noncommutative quadrics and Hilbert squares},
  author = {Pieter Belmans and Theo Raedschelders},
  journal= {arXiv preprint arXiv:1605.02795},
  year   = {2018}
}

Comments

21 pages. Small corrections + expanded proof of Lemma 2.1