English

Stable $\mathbb{A}^1$-connectivity over Dedekind schemes

Algebraic Geometry 2018-04-04 v3 Algebraic Topology

Abstract

We show that A1\mathbb{A}^1-localization decreases the Nisnevich-stalkwise connectivity by at most one over a Dedekind scheme with infinite residue fields. For the proof, we establish a Nisnevich-local version of Gabber's geometric presentation lemma over a henselian discrete valuation ring with infinite residue field.

Cite

@article{arxiv.1602.08356,
  title  = {Stable $\mathbb{A}^1$-connectivity over Dedekind schemes},
  author = {Johannes Schmidt and Florian Strunk},
  journal= {arXiv preprint arXiv:1602.08356},
  year   = {2018}
}

Comments

Final version (to appear in Ann. K-Theory)

R2 v1 2026-06-22T12:58:40.033Z