English

A homotopy coherent nerve for $(\infty,n)$-categories

Algebraic Topology 2024-02-07 v3 Category Theory

Abstract

In the case of (,1)(\infty,1)-categories, the homotopy coherent nerve gives a right Quillen equivalence between the models of simplicially enriched categories and of quasi-categories. This shows that homotopy coherent diagrams of (,1)(\infty,1)-categories can equivalently be defined as functors of quasi-categories or as simplicially enriched functors out of the homotopy coherent categorifications. In this paper, we construct a homotopy coherent nerve for (,n)(\infty,n)-categories. We show that it realizes a right Quillen equivalence between the models of categories strictly enriched in (,n1)(\infty,n-1)-categories and of Segal category objects in (,n1)(\infty,n-1)-categories. This similarly enables us to define homotopy coherent diagrams of (,n)(\infty,n)-categories equivalently as functors of Segal category objects or as strictly enriched functors out of the homotopy coherent categorifications.

Keywords

Cite

@article{arxiv.2208.02745,
  title  = {A homotopy coherent nerve for $(\infty,n)$-categories},
  author = {Lyne Moser and Nima Rasekh and Martina Rovelli},
  journal= {arXiv preprint arXiv:2208.02745},
  year   = {2024}
}

Comments

55 pages; v3: final version to appear in JPAA. v2 supersedes v1, which contains some errors. v2 is a complete rewrite that proves a similar main result to v1 but in the model of Segal category objects in (oo,n-1)-categories instead of complete Segal objects in (oo,n-1)-categories

R2 v1 2026-06-25T01:29:09.871Z