English

Coherence for bicategories, lax functors, and shadows

Category Theory 2021-09-06 v1

Abstract

Coherence theorems are fundamental to how we think about monoidal categories and their generalizations. In this paper we revisit Mac Lane's original proof of coherence for monoidal categories using the Grothendieck construction. This perspective makes the approach of Mac Lane's proof very amenable to generalization. We use the technique to give efficient proofs of many standard coherence theorems and new coherence results for bicategories with shadow and for their functors.

Keywords

Cite

@article{arxiv.2109.01249,
  title  = {Coherence for bicategories, lax functors, and shadows},
  author = {Cary Malkiewich and Kate Ponto},
  journal= {arXiv preprint arXiv:2109.01249},
  year   = {2021}
}

Comments

35 pages

R2 v1 2026-06-24T05:38:48.601Z