Weightable quasi-metrics related to fuzzy sets

We show that the definition of a fuzzy set is directly related to the existence of a weightable quasi-metric on a universe. This relationship is also explored in terms of functional equations coming either from the membership function of a fuzzy set or from the disymmetry function of a quasi-metric.

Detalles Bibliográficos
Autores: Campión Arrastia, María Jesús, García Catalán, Olga Raquel, Induráin Eraso, Esteban, Valero, Óscar
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/34778
Acceso en línea:https://hdl.handle.net/2454/34778
Access Level:acceso abierto
Palabra clave:Functional equations
Fuzzy sets
Representable total preorders
Weightable quasi-metrics
Descripción
Sumario:We show that the definition of a fuzzy set is directly related to the existence of a weightable quasi-metric on a universe. This relationship is also explored in terms of functional equations coming either from the membership function of a fuzzy set or from the disymmetry function of a quasi-metric.