English

Weak weak approximation for certain quadric surface bundles

Algebraic Geometry 2025-03-07 v3 Number Theory

Abstract

We investigate weak approximation away from a finite set of places for a class of biquadratic fourfolds inside P3×P2\mathbb{P}^3 \times \mathbb{P}^2, some of which appear in the recent work of Hassett--Pirutka--Tschinkel.

Keywords

Cite

@article{arxiv.2110.03793,
  title  = {Weak weak approximation for certain quadric surface bundles},
  author = {Nick Rome},
  journal= {arXiv preprint arXiv:2110.03793},
  year   = {2025}
}

Comments

Final version, to appear in Bulletin des Sciences Math\'ematiques

R2 v1 2026-06-24T06:43:20.844Z