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On four intuitionistic fuzzy topological operators.

Krassimir T. Atanassov (2001)

Mathware and Soft Computing

Four new operators, which are analogous of the topological operators interior and closure, are defined. Some of their basic properties are studied. Their geometrical interpretations are given.

On FU( p )-spaces and p -sequential spaces

Salvador García-Ferreira (1991)

Commentationes Mathematicae Universitatis Carolinae

Following Kombarov we say that X is p -sequential, for p α * , if for every non-closed subset A of X there is f α X such that f ( α ) A and f ¯ ( p ) X A . This suggests the following definition due to Comfort and Savchenko, independently: X is a FU( p )-space if for every A X and every x A - there is a function f α A such that f ¯ ( p ) = x . It is not hard to see that p RK q ( RK denotes the Rudin–Keisler order) every p -sequential space is q -sequential every FU( p )-space is a FU( q )-space. We generalize the spaces S n to construct examples of p -sequential...

On fuzzification of the notion of quantaloid

Sergey A. Solovyov (2010)

Kybernetika

The paper considers a fuzzification of the notion of quantaloid of K. I. Rosenthal, which replaces enrichment in the category of -semilattices with that in the category of modules over a given unital commutative quantale. The resulting structures are called quantale algebroids. We show that their constitute a monadic category and prove a representation theorem for them using the notion of nucleus adjusted for our needs. We also characterize the lattice of nuclei on a free quantale algebroid. At...

On fuzzy B -algebras

Young Bae Jun, Eun Hwan Roh, Hee Sik Kim (2002)

Czechoslovak Mathematical Journal

The fuzzification of (normal) B -subalgebras is considered, and some related properties are investigated. A characterization of a fuzzy B -algebra is given.

On fuzzy binary relations.

Sergei V. Ovchinnikov, Teresa Riera Madurell (1983)

Stochastica

A binary relation language is an important tool of the theory of measurements (see, for example, book [5]). Specifically, the theory of nominal and ordinal scales is based on theories of equivalent relations and weak orderings. These binary relations have a simple structure which can be described as follows (bearing in mind a context of the measurement theory).

On fuzzy input data and the worst scenario method

Jan Chleboun (2003)

Applications of Mathematics

In practice, input data entering a state problem are almost always uncertain to some extent. Thus it is natural to consider a set 𝒰 a d of admissible input data instead of a fixed and unique input. The worst scenario method takes into account all states generated by 𝒰 a d and maximizes a functional criterion reflecting a particular feature of the state solution, as local stress, displacement, or temperature, for instance. An increase in the criterion value indicates a deterioration in the featured quantity....

On fuzzy sets.

Tofan, Doina, Tofan, Ioan, Volf, Claudiu Aurelian (2001)

Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică

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