A double categorical model of weak 2-categories

Simona Paoli, Dorette Pronk

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We introduce the notion of weakly globular double categories, a particular class of strict double categories, as a way to model weak 2-categories. We show that this model is suitably equivalent to bicategories and give an explicit description of the functors involved in this biequivalence. As an application we show that groupoidal weakly globular double categories model homotopy 2-types.

Original languageEnglish
Pages (from-to)933-980
Number of pages48
JournalTheory and Applications of Categories
Publication statusPublished - 6 Oct 2013


  • Bicategories
  • Double categories
  • Pseudo-functors
  • Strict 2-categories
  • Strictification
  • Tamsamani weak 2- categories


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