Summary

• Extensions of set functions ﻿

(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2003)
Article
Open Access
We establish a necessary and suficient condition for a function defined on a subset of an algebra of sets to be extendable to a positive additive function on the algebra. It is also shown that this condition is necessary ...
• Haussdorfness in intutionistic fuzzy topological spaces ﻿

(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2003)
Article
Open Access
The basic concepts of the theory of intuitionistic fuzzy topological spaces have been defined by D. Çcoker and co-workers. In this paper, we define new notions of Hausdorffness in the intuitionistic fuzzy sense, and obtain ...
• Combining degrees of impairment: the case of the index of Balthazard ﻿

(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2003)
Article
Open Access
Using techniques for modeling indices by means of functional equations and resources from fuzzy set theory, the classical Balthazard index used in order to combine several degrees of impairment is characterized in two ...
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