Some remarks on connectors and groupoids in goursat categories

We prove that connectors are stable under quotients in any (regular) Goursat category. As a consequence, the category Conn(C) of connectors in C is a Goursat category whenever C is. This implies that Goursat categories can be characterised in terms of a simple property of internal groupoids.

Bibliographic Details
Main Author: Gran, Marino (author)
Other Authors: Nguefeu, Idriss Tchoffo (author), Rodelo, Diana (author)
Format: article
Language:eng
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/10400.1/11985
Country:Portugal
Oai:oai:sapientia.ualg.pt:10400.1/11985
Description
Summary:We prove that connectors are stable under quotients in any (regular) Goursat category. As a consequence, the category Conn(C) of connectors in C is a Goursat category whenever C is. This implies that Goursat categories can be characterised in terms of a simple property of internal groupoids.