English

$\mathbb{A}^1$-connected components of blow-up of threefolds fibered over a surface

Algebraic Geometry 2022-02-24 v2 Algebraic Topology K-Theory and Homology

Abstract

Over a perfect field, we determine the sheaf of A1\mathbb{A}^1-connected components of a class of threefolds given by the Blow-up of a variety admitting a P1\mathbb{P}^1-fibration over either an A1\mathbb{A}^1-rigid or a non-uniruled surface, along a smooth curve. As a consequence, we verify that the sheaf of A1\mathbb{A}^1-connected components for such varieties is A1\mathbb{A}^1-invariant.

Keywords

Cite

@article{arxiv.2009.09424,
  title  = {$\mathbb{A}^1$-connected components of blow-up of threefolds fibered over a surface},
  author = {Rakesh Pawar},
  journal= {arXiv preprint arXiv:2009.09424},
  year   = {2022}
}

Comments

19 pages, major restructuring/changes in exposition after initial journal report