The Barratt--Priddy--Quillen theorem via scanning methods

Fuente: arXiv
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Main Author: Delarue, Marie-Camille
Format: Preprint
Published: 2025
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author Delarue, Marie-Camille
author_facet Delarue, Marie-Camille
contents The homology of the symmetric groups stabilizes, and the Barratt--Priddy--Quillen theorem identifies the stable homology with that of the infinite loop space underlying the sphere spectrum. We formulate a new proof inspired by Galatius, Kupers, and Randal-Williams using scanning methods. We build a topological model for the monoid formed by all the symmetric groups as a category of paths in $\mathbb{R}^\infty$ and build a scanning map from this model to a space of local images.
format Preprint
id arxiv_https___arxiv_org_abs_2510_13564
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Barratt--Priddy--Quillen theorem via scanning methods
Delarue, Marie-Camille
Algebraic Topology
The homology of the symmetric groups stabilizes, and the Barratt--Priddy--Quillen theorem identifies the stable homology with that of the infinite loop space underlying the sphere spectrum. We formulate a new proof inspired by Galatius, Kupers, and Randal-Williams using scanning methods. We build a topological model for the monoid formed by all the symmetric groups as a category of paths in $\mathbb{R}^\infty$ and build a scanning map from this model to a space of local images.
title The Barratt--Priddy--Quillen theorem via scanning methods
topic Algebraic Topology
url https://arxiv.org/abs/2510.13564