TY - JOUR
T1 - Hom weak ω-categories of a weak ω-category
AU - Cottrell, Thomas
AU - Fujii, Soichiro
N1 - Funding Information:
We gratefully acknowledge the support of Royal Society grant IE160402. The second author is supported by ERATO HASUO Metamathematics for Systems Design Project (No. JPMJER1603), JST. No data were generated in association with this paper.
PY - 2022/4/12
Y1 - 2022/4/12
N2 - Classical definitions of weak higher-dimensional categories are given inductively, for example, a bicategory has a set of objects and hom categories, and a tricategory has a set of objects and hom bicategories. However, more recent definitions of weak n-categories for all natural numbers n, or of weak -categories, take more sophisticated approaches, and the nature of the 'hom is often not immediate from the definitions'. In this paper, we focus on Leinster's definition of weak -category based on an earlier definition by Batanin and construct, for each weak -category, an underlying (weak -category)-enriched graph consisting of the same objects and for each pair of objects x and y, a hom weak -category. We also show that our construction is functorial with respect to weak -functors introduced by Garner.
AB - Classical definitions of weak higher-dimensional categories are given inductively, for example, a bicategory has a set of objects and hom categories, and a tricategory has a set of objects and hom bicategories. However, more recent definitions of weak n-categories for all natural numbers n, or of weak -categories, take more sophisticated approaches, and the nature of the 'hom is often not immediate from the definitions'. In this paper, we focus on Leinster's definition of weak -category based on an earlier definition by Batanin and construct, for each weak -category, an underlying (weak -category)-enriched graph consisting of the same objects and for each pair of objects x and y, a hom weak -category. We also show that our construction is functorial with respect to weak -functors introduced by Garner.
KW - Weak ω-category
KW - identity type
KW - intensional Martin-Löf type theory
KW - operad
KW - weak ω-functor
KW - weak ω-groupoid
UR - http://www.scopus.com/inward/record.url?scp=85144349487&partnerID=8YFLogxK
U2 - 10.1017/S0960129522000111
DO - 10.1017/S0960129522000111
M3 - Article
SN - 0960-1295
VL - 32
SP - 420
EP - 441
JO - Mathematical Structures in Computer Science
JF - Mathematical Structures in Computer Science
IS - 4
ER -