On coregular closure operators

• Autor(es): Gutierres, Gonçalo
• Data: 1999
• Identificador Persistente: http://hdl.handle.net/10316/11480
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Closure operator; (co) regular closure operator; Connectedness; Preradical; Torsion theory
• Tipo de Documento: Preprint
• Idioma: Inglês

Descrição

Among closure operators in the sense of Dikranjan and Giuli [5] the regular ones have a relevant role and have been widely investigated. On the contrary, the coregular closure operators were introduced only recently in [3] and they need to be further investigated. In this paper we study co regular closure operators, in connection connectednesses and disconnectednesses, in the realm of topological spaces and modules.