Segal spaces, spans, and semicategories
Peer reviewed, Journal article
Accepted version
Permanent lenke
https://hdl.handle.net/11250/3025916Utgivelsesdato
2021Metadata
Vis full innførselSamlinger
- Institutt for matematiske fag [2350]
- Publikasjoner fra CRIStin - NTNU [37177]
Originalversjon
Proceedings of the American Mathematical Society. 2021, 149 (3), 961-975. 10.1090/proc/15197Sammendrag
We show that Segal spaces, and more generally category objects in an -category , can be identified with associative algebras in the double -category of spans in . We use this observation to prove that “having identities” is a property of a non-unital -category.