English

An orthogonal approach to algebraic weak factorisation systems

Category Theory 2022-12-16 v2

Abstract

We describe an equivalent formulation of algebraic weak factorisation systems, not involving monads and comonads, but involving double categories of morphisms equipped with a lifting operation satisfying lifting and factorisation axioms.

Keywords

Cite

@article{arxiv.2204.09584,
  title  = {An orthogonal approach to algebraic weak factorisation systems},
  author = {John Bourke},
  journal= {arXiv preprint arXiv:2204.09584},
  year   = {2022}
}

Comments

Added intro to double categories and discussion of homotopical examples. Journal version

R2 v1 2026-06-24T10:53:36.841Z