Results 21 to 30 of about 287 (79)
A Tychonoff theorem in intuitionistic fuzzy topological spaces
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 70, Page 3829-3837, 2004., 2004 The purpose of this paper is to prove a Tychonoff theorem in the so‐called “intuitionistic fuzzy topological spaces.” After giving the fundamental definitions, such as the definitions of intuitionistic fuzzy set, intuitionistic fuzzy topology, intuitionistic fuzzy topological space, fuzzy continuity, fuzzy compactness, and fuzzy dicompactness, we ...
Doğan Çoker +2 more
wiley +1 more source
Common fixed point theorems and applications [PDF]
, 1997 The purpose of this paper is to discuss the existence of common fixed points for mappings in general quasi-metric spaces. As applications, some common fixed point theorems for mappings in probabilistic quasi-metric spaces are given. The results presented
Hemant Kumar Pathak +3 more
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α‐fuzzy compactness in I‐topological spaces
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 41, Page 2609-2617, 2003., 2003 Using a gradation of openness in a (Chang fuzzy) I‐topological space, we introduce degrees of compactness that we call α‐fuzzy compactness (where α belongs to the unit interval), so extending the concept of compactness due to C. L. Chang. We obtain a Baire category theorem for α‐locally compact spaces and construct a one‐point α‐fuzzy compactification ...
Valentín Gregori, Hans-peter A. Künzi
wiley +1 more source
A NOTE ON SOFT FUZZY VOLTERRA SPACES [PDF]
, 2016 In this paper, the concepts of soft fuzzy -Volterra spaces and soft fuzzy -Volterra spaces are introduced and studied.
EÅŸ, A Haydar
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Fuzzy super irresolute functions
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 42, Page 2689-2700, 2003., 2003 The concept of fuzzy super irresolute function was considered and studied by Šostak's (1985). A comparison between this type and other existing ones is established. Several characterizations, properties, and their effect on some fuzzy topological spaces are studied.
S. E. Abbas
wiley +1 more source
On completable fuzzy metric spaces [PDF]
, 2015 In this paper we construct a non-completable fuzzy metric space in the sense of George and Veeramani which allows to answer an open question related to continuity on the real parameter t. In addition, the constructed space is not strong (non-Archimedean).
Gregori Gregori, Valentín +2 more
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α‐compactness in smooth topological spaces
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 46, Page 2897-2906, 2003., 2003 We introduce the concepts of smooth α‐closure and smooth α‐interior of a fuzzy set which are generalizations of smooth closure and smooth interior of a fuzzy set defined by Demirci (1997) and obtain some of their structural properties.
Chun-Kee Park +2 more
wiley +1 more source
Sobriety of crisp and fuzzy topological spaces [PDF]
, 2003 The objective of this thesis is a survey of crisp and fuzzy sober topological spaces. We begin by examining sobriety of crisp topological spaces. We then extend this to the L- topological case and obtain analogous results and characterizations to those ...
Jacot-Guillarmod, Paul
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Fuzzy properties in fuzzy convergence spaces
International Journal of Mathematics and Mathematical Sciences, Volume 29, Issue 12, Page 737-748, 2002., 2002 Based on the concept of limit of prefilters and residual implication, several notions in fuzzy topology are fuzzyfied in the sense that, for each notion, the degree to which it is fulfilled is considered. We establish therefore theories of degrees of compactness and relative compactness, of closedness, and of continuity.
Gunther Jäger
wiley +1 more source
Characterization of fuzzy neighborhood commutative division rings II [PDF]
, 1995 In [4] we produced a characterization of fuzzy neighborhood commutative division rings; here we present another characterization of it in a sense that we minimize the conditions so that a fuzzy neighborhood system is compatible with the commutative ...
Fawzi A. Al-Thukair, T. M. G. Ahsanullah
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