English

Omega-categories and chain complexes

Category Theory 2007-05-23 v2

Abstract

There are several ways to construct omega-categories from combinatorial objects such as pasting schemes or parity complexes. We make these constructions into a functor on a category of chain complexes with additional structure, which we call augmented directed complexes. This functor from augmented directed complexes to omega-categories has a left adjoint, and the adjunction restricts to an equivalence on a category of augmented directed complexes with good bases. The omega-categories equivalent to augmented directed complexes with good bases include the omega-categories associated to globes, simplexes and cubes; thus the morphisms between these omega-categories are determined by morphisms between chain complexes. It follows that the entire theory of omega-categories can be expressed in terms of chain complexes; in particular we describe the biclosed monoidal structure on omega-categories and calculate some internal homomorphism objects.

Keywords

Cite

@article{arxiv.math/0403237,
  title  = {Omega-categories and chain complexes},
  author = {Richard Steiner},
  journal= {arXiv preprint arXiv:math/0403237},
  year   = {2007}
}

Comments

18 pages; as published, with minor changes from version 1