activity
20172026
most citedSkew-enriched categories

37 citations · 56 across the 9 of their papers we have counts for

collaborators

9 papers

math.CT2026

A convenient model category for bicategories

Alexander Campbell

We introduce and study the model category of flexible -categories, which is Quillen equivalent to Lack's model category of -categories, but enjoys several excellent propertie…

math.CT2026

Parity complexes redux

Alexander Campbell

We fix the notion of parity complex by a judicious selection from among the axioms originally considered by Street. We show that parity complexes so defined, together with the morp…

math.CT2025

Equivalence via surjections

Tom Leinster

Many types of categorical structure obey the following principle: the natural notion of equivalence is generated, as an equivalence relation, by identifying with when there…

math.CT2019★ 1 cited

Joyal's cylinder conjecture

Alexander Campbell

For each pair of simplicial sets and , the category of cylinders (also called correspondences) from to admits a model structure induced from Joya…

math.CT2019★ 11 cited

A homotopy coherent cellular nerve for bicategories

Alexander Campbell

The subject of this paper is a nerve construction for bicategories introduced by Leinster, which defines a fully faithful functor from the category of bicategories and normal pseud…

math.AT2019★ 5 cited

A counterexample in quasi-category theory

Alexander Campbell

We give an example of a morphism of simplicial sets which is a monomorphism, bijective on 0-simplices, and a weak categorical equivalence, but which is not inner anodyne. This answ…

math.CT2018

On truncated quasi-categories

Alexander Campbell, Edoardo Lanari

For each , a quasi-category is said to be -truncated if its hom-spaces are -types. In this paper we study the model structure for -truncated quasi-categorie…

math.CT2018★ 2 cited

How strict is strictification?

Alexander Campbell

The subject of this paper is the higher structure of the strictification adjunction, which relates the two fundamental bases of three-dimensional category theory: the $\mathbf{Gray…

math.CT2017★ 37 cited

Skew-enriched categories

Alexander Campbell

This paper introduces a skew variant of the notion of enriched category, suitable for enrichment over a skew-monoidal category, the main novelty of which is that the elements of th…