English

A Chebotarev-type density theorem for divisors on algebraic varieties

Algebraic Geometry 2012-09-20 v2 Number Theory

Abstract

Let ZXZ \to X be a finite branched Galois cover of normal projective geometrically integral varieties of dimension d2d \geq 2 over a perfect field kk. For such a cover, we prove a Chebotarev-type density result describing the decomposition behaviour of geometrically integral Cartier divisors. As an application, we classify Galois covers among all finite branched covers of a given normal geometrically integral variety XX over kk by the decomposition behaviour of points of a fixed codimension rr with 0<r<dimX0 < r < \dim X.

Keywords

Cite

@article{arxiv.1006.2340,
  title  = {A Chebotarev-type density theorem for divisors on algebraic varieties},
  author = {Armin Holschbach},
  journal= {arXiv preprint arXiv:1006.2340},
  year   = {2012}
}

Comments

Introduction reorganized, some other (minor) changes. 31 pages

R2 v1 2026-06-21T15:35:07.183Z