English

The coordinate biring of $\mathbf{Spec}(\mathbb{Z})/\mathbb{F}_1$

Rings and Algebras 2015-09-03 v1 Algebraic Geometry Number Theory Quantum Algebra

Abstract

We propose to define F1\mathbb{F}_1-algebras as integral bi-rings with the co-ring structure being the descent data from Z\mathbb{Z} to F1\mathbb{F}_1. The coordinate bi-ring of Spec(Z)/F1\mathbf{Spec}(\mathbb{Z})/\mathbb{F}_1 is then the co-ring of integral linear recursive sequences equipped with the Hadamard product. We associate a noncommutative moduli space to this setting, show that it is defined over F1\mathbb{F}_1, and has motive n0sn2π\prod_{n \geq 0} \frac{s-n}{2 \pi}.

Keywords

Cite

@article{arxiv.1509.00749,
  title  = {The coordinate biring of $\mathbf{Spec}(\mathbb{Z})/\mathbb{F}_1$},
  author = {Lieven Le Bruyn},
  journal= {arXiv preprint arXiv:1509.00749},
  year   = {2015}
}
R2 v1 2026-06-22T10:47:36.348Z