Another approach to the Kan–Quillen model structure

By careful analysis of the embedding of a simplicial set into its image under Kan’s Ex∞ functor we obtain a new and combinatorial proof that it is a weak homotopy equivalence. Moreover, we obtain a presentation of it as a strong anodyne extension. From this description we can quickly deduce some bas...

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Main Author: Moss, S
Format: Journal article
Language:English
Published: Springer Nature 2019
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author Moss, S
author_facet Moss, S
author_sort Moss, S
collection OXFORD
description By careful analysis of the embedding of a simplicial set into its image under Kan’s Ex∞ functor we obtain a new and combinatorial proof that it is a weak homotopy equivalence. Moreover, we obtain a presentation of it as a strong anodyne extension. From this description we can quickly deduce some basic facts about Ex∞ and hence provide a new construction of the Kan–Quillen model structure on simplicial sets, one which avoids the use of topological spaces or minimal fibrations.
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spelling oxford-uuid:3286eec1-ca1c-4213-a224-d20410f8b8462022-03-26T13:14:39ZAnother approach to the Kan–Quillen model structureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3286eec1-ca1c-4213-a224-d20410f8b846EnglishSymplectic ElementsSpringer Nature2019Moss, SBy careful analysis of the embedding of a simplicial set into its image under Kan’s Ex∞ functor we obtain a new and combinatorial proof that it is a weak homotopy equivalence. Moreover, we obtain a presentation of it as a strong anodyne extension. From this description we can quickly deduce some basic facts about Ex∞ and hence provide a new construction of the Kan–Quillen model structure on simplicial sets, one which avoids the use of topological spaces or minimal fibrations.
spellingShingle Moss, S
Another approach to the Kan–Quillen model structure
title Another approach to the Kan–Quillen model structure
title_full Another approach to the Kan–Quillen model structure
title_fullStr Another approach to the Kan–Quillen model structure
title_full_unstemmed Another approach to the Kan–Quillen model structure
title_short Another approach to the Kan–Quillen model structure
title_sort another approach to the kan quillen model structure
work_keys_str_mv AT mosss anotherapproachtothekanquillenmodelstructure