An Alternative to Spherical Witt Vectors

Fuente: arXiv
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Autores principales: Nikolaus, Thomas, Yakerson, Maria
Formato: Preprint
Publicado: 2024
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author Nikolaus, Thomas
Yakerson, Maria
author_facet Nikolaus, Thomas
Yakerson, Maria
contents We give a direct construction of the ring spectrum of spherical Witt vectors of a perfect $\mathbb{F}_p$-algebra R as the completion of the spherical monoid algebra $\mathbb{S}[R]$ of the multiplicative monoid $(R,\cdot)$ at the ideal $I = \mathrm{fib}(\mathbb{S}[R] \to R)$. This generalizes a construction of Cuntz and Deninger. We also use this to give a description of the category of p-complete modules over the spherical Witt vectors and a universal property for spherical Witt vectors as an $\mathbb{E}_1$-ring.
format Preprint
id arxiv_https___arxiv_org_abs_2405_09606
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An Alternative to Spherical Witt Vectors
Nikolaus, Thomas
Yakerson, Maria
Algebraic Topology
Commutative Algebra
Algebraic Geometry
Number Theory
We give a direct construction of the ring spectrum of spherical Witt vectors of a perfect $\mathbb{F}_p$-algebra R as the completion of the spherical monoid algebra $\mathbb{S}[R]$ of the multiplicative monoid $(R,\cdot)$ at the ideal $I = \mathrm{fib}(\mathbb{S}[R] \to R)$. This generalizes a construction of Cuntz and Deninger. We also use this to give a description of the category of p-complete modules over the spherical Witt vectors and a universal property for spherical Witt vectors as an $\mathbb{E}_1$-ring.
title An Alternative to Spherical Witt Vectors
topic Algebraic Topology
Commutative Algebra
Algebraic Geometry
Number Theory
url https://arxiv.org/abs/2405.09606