English

Steenbrink-type vanishing for surfaces in positive characteristic

Algebraic Geometry 2024-09-17 v2

Abstract

Let (X,B)(X,B) be a pair of a normal surface over a perfect field of characteristic p>0p>0 and an effective Q\mathbb{Q}-divisor BB on XX. We prove that Steenbrink-type vanishing holds for (X,B)(X,B) if it is log canonical and p>5p>5, or it is FF-pure. We also show that rational surface singularities satisfying the vanishing are FF-injective.

Keywords

Cite

@article{arxiv.2402.08153,
  title  = {Steenbrink-type vanishing for surfaces in positive characteristic},
  author = {Tatsuro Kawakami},
  journal= {arXiv preprint arXiv:2402.08153},
  year   = {2024}
}

Comments

18 pages, final version, to appear in Bulletin of the London Mathematical Society

R2 v1 2026-06-28T14:46:51.194Z