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.

Detalhes bibliográficos
Autor principal: Gran, Marino (author)
Outros Autores: Nguefeu, Idriss Tchoffo (author), Rodelo, Diana (author)
Formato: article
Idioma:eng
Publicado em: 2018
Assuntos:
Texto completo:http://hdl.handle.net/10400.1/11985
País:Portugal
Oai:oai:sapientia.ualg.pt:10400.1/11985
Descrição
Resumo: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.