English

A K-theoretic approach to Artin maps

K-Theory and Homology 2017-04-04 v2 Number Theory

Abstract

We define a functorial "Artin map" attached to any small Z\bf{Z}-linear stable \infty-category, which in the case of perfect complexes over a global field recovers the usual Artin map from the idele class group to the abelianized absolute Galois group. In particular, this gives a new proof of the Artin reciprocity law.

Keywords

Cite

@article{arxiv.1703.07842,
  title  = {A K-theoretic approach to Artin maps},
  author = {Dustin Clausen},
  journal= {arXiv preprint arXiv:1703.07842},
  year   = {2017}
}
R2 v1 2026-06-22T18:54:14.883Z