Dug Hun Hong (2009)
Kybernetika
Similarity:
We investigate a relation about subadditivity of functions. Based on subadditivity of functions, we consider some conditions for continuous -norms to act as the weakest -norm -based addition. This work extends some results of Marková-Stupňanová [15], Mesiar [18].
Esko Turunen (1987)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
Abdelkader Stouti (2005)
Archivum Mathematicum
Similarity:
We prove the existence of a fixed point of non-expanding fuzzy multifunctions in -fuzzy preordered sets. Furthermore, we establish the existence of least and minimal fixed points of non-expanding fuzzy multifunctions in -fuzzy ordered sets.
Branimir Šešelja, Andreja Tepavčević (2005)
Kybernetika
Similarity:
Necessary and sufficient conditions under which two fuzzy sets (in the most general, poset valued setting) with the same domain have equal families of cut sets are given. The corresponding equivalence relation on the related fuzzy power set is investigated. Relationship of poset valued fuzzy sets and fuzzy sets for which the co-domain is Dedekind-MacNeille completion of that posets is deduced.