English

A generalization of higher rank graphs

Category Theory 2021-04-20 v1

Abstract

We introduce what we call `generalized higher rank kk-graphs' as a class of categories equipped with a notion of size. They extend not only the higher rank kk-graphs, but also the Levi categories introduced by the first author as a categorical setting for graphs of groups. We prove that examples of generalized higher rank kk-graphs can be constructed using Zappa-Sz\'ep products of groupoids and higher rank graphs.

Keywords

Cite

@article{arxiv.2104.09421,
  title  = {A generalization of higher rank graphs},
  author = {M. V. Lawson and A. Vdovina},
  journal= {arXiv preprint arXiv:2104.09421},
  year   = {2021}
}
R2 v1 2026-06-24T01:20:10.932Z