English

A Phantom on a Rational Surface

Algebraic Geometry 2024-08-01 v2

Abstract

We construct a non-full exceptional collection of maximal length consisting of line bundles on the blow-up of the projective plane in 10 points in general position. This provides a counterexample to a conjecture of Kuznetsov and to a conjecture of Orlov.

Keywords

Cite

@article{arxiv.2304.01269,
  title  = {A Phantom on a Rational Surface},
  author = {Johannes Krah},
  journal= {arXiv preprint arXiv:2304.01269},
  year   = {2024}
}

Comments

6 pages, added application to presilting objects in introduction

R2 v1 2026-06-28T09:47:34.940Z