English

A note on the behaviour of the Tate conjecture under finitely generated field extensions

Algebraic Geometry 2021-05-11 v3 Number Theory

Abstract

We show that the \ell-adic Tate conjecture for divisors on smooth proper varieties over finitely generated fields of positive characteristic follows from the \ell-adic Tate conjecture for divisors on smooth projective surfaces over finite fields. Similar results for cycles of higher co-dimension are given.

Keywords

Cite

@article{arxiv.1810.06480,
  title  = {A note on the behaviour of the Tate conjecture under finitely generated field extensions},
  author = {Emiliano Ambrosi},
  journal= {arXiv preprint arXiv:1810.06480},
  year   = {2021}
}

Comments

v1:6 pages. Comments are welcome. v2: Corrected a gap in the proof of Theorem 1.1.2. Changed Proposition 3.1.2 accordingly. v3: final version