paper

Orientals as free weak -categories

arXiv:2102.09736 · doi:10.1016/j.jpaa.2022.107230

Abstract

The orientals are the free strict -categories on the simplices introduced by Street. The aim of this paper is to show that they are also the free weak -categories on the same generating data. More precisely, we exhibit the Street nerves of the orientals as fibrant replacements of the simplices in Verity's model structure for complicial sets.

v2: 24 pages. Major revision. Published version

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