A prismatic decomposition of the Barratt-Eccles operad
Algebraic Topology
2007-05-23 v1
Abstract
The Barratt-Eccles operad is a simplicial operad formed by the classical homogeneous bar construction of the symmetric groups. We prove that these simplicial sets decompose as unions of prisms indexed by surjections. We observe that the cellular complexes given by this prismatic structure are nothing but the components of the surjection operad (the operad introduced by J. McClure and J. Smith in their work on the Deligne conjecture).
Cite
@article{arxiv.math/0204326,
title = {A prismatic decomposition of the Barratt-Eccles operad},
author = {Clemens Berger and Benoit Fresse},
journal= {arXiv preprint arXiv:math/0204326},
year = {2007}
}
Comments
Projet de note aux C.R.Acad.Sci.Paris