English

A Witt Nadel vanishing theorem for threefolds

Algebraic Geometry 2020-02-19 v2 Number Theory

Abstract

In this paper, we establish a vanishing theorem of Nadel type for the Witt multiplier ideals on threefolds over perfect fields of characteristic larger than five. As an application, if a projective normal threefold over Fq\mathbb{F}_q is not klt and its canonical divisor is anti-ample, then the number of the rational points on the klt-locus is divisible by qq.

Keywords

Cite

@article{arxiv.1712.07358,
  title  = {A Witt Nadel vanishing theorem for threefolds},
  author = {Yusuke Nakamura and Hiromu Tanaka},
  journal= {arXiv preprint arXiv:1712.07358},
  year   = {2020}
}

Comments

42 pages. To appear in Compositio Math

R2 v1 2026-06-22T23:24:11.947Z