English

Exceptional collection of objects on some fake projective planes

Algebraic Geometry 2021-08-06 v1

Abstract

The purpose of the article is to explain a new method to establish the existence of an exceptional collection of length three for a fake projective plane M with non-trivial automorphism group, related to a conjecture of Galkin-Katzarkov-Mellit-Shinder in 2015. Our method shows that 30 fake projective planes support such a sequence, most of which are new. In particular, this provides many new H-phantom categories.

Keywords

Cite

@article{arxiv.2108.02412,
  title  = {Exceptional collection of objects on some fake projective planes},
  author = {Ching-Jui Lai and Sai-Kee Yeung},
  journal= {arXiv preprint arXiv:2108.02412},
  year   = {2021}
}

Comments

39 pages. To appear on International Mathematics Research Notices

R2 v1 2026-06-24T04:50:53.299Z