English

On geometrically $C_1$ fields

Algebraic Geometry 2024-07-30 v1 Logic Number Theory

Abstract

A field kk is called geometrically C1C_1 if every smooth projective separably rationally connected kk-variety has a kk-rational point. Given a henselian valued field of equal characteristic 00 with divisible value group, we show that the property of being geometrically C1C_1 lifts from the residue field to the valued field. We also prove that algebraically maximal valued fields with divisible value group and finite residue field are geometrically C1C_1. In particular, any maximal totally ramified extension of a local field is geometrically C1C_1.

Keywords

Cite

@article{arxiv.2407.19986,
  title  = {On geometrically $C_1$ fields},
  author = {Konstantinos Kartas},
  journal= {arXiv preprint arXiv:2407.19986},
  year   = {2024}
}

Comments

23 pages

R2 v1 2026-06-28T17:56:51.341Z