Results 31 to 40 of about 287 (79)

Fuzzy cγ‐open sets and fuzzy cγ‐continuity in fuzzifying topology

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 1, Page 51-63, 2002., 2002
The concepts of fuzzy cγ‐open sets and fuzzy cγ‐continuity are introduced and studied in fuzzifying topology and by making use of these concepts, some decompositions of fuzzy continuity are introduced.
T. Noiri, O. R. Sayed
wiley   +1 more source

On I-convergence of nets of functions in fuzzy metric spaces

open access: yesOpen Mathematics
In this paper, we introduce ideal versions of semi-α convergence, semi-exhaustiveness and semi uniform convergence of nets of functions between two fuzzy metric spaces, and obtain some properties of them.
Zhong Lingsheng   +2 more
doaj   +1 more source

A Note on Fixed Fuzzy Points for Fuzzy Mappings [PDF]

open access: yes, 2001
We prove a fixed fuzzy point theorem for fuzzy contraction mappings (in the S. Heilpern’s sense) over a complete metric space, and as a consequence we obtain a fixed point theorem in the context of intuitionistic fuzzy ...
Estruch, Vicente D., Vidal, Anna
core   +1 more source

A note on local bases and convergence in fuzzy metric spaces [PDF]

open access: yes, 2014
In the context of fuzzy metrics in the sense of George and Veeramani, we study when certain families of open balls centered at a point are local bases at this point. This question is related to p-convergence and s-convergence. © 2013 Elsevier B.V. All
George   +19 more
core   +1 more source

On Covering Prosperities via Neutrosophic e‐Open Set in Neutrosophic Topological Space

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This research presents and explores a novel category of compactness in neutrosophic topological spaces (NTSs), termed neutrosophic e‐compact and neutrosophic locally e‐compact. This category is positioned within the frameworks of neutrosophic δ‐semicompactness and neutrosophic δ‐precompactness, while also encompassing neutrosophic β‐compactness.
Wadei Al-Omeri, Ammar Alsinai
wiley   +1 more source

Fuzzy neighborhood structures on partially ordered groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 6, Page 359-365, 2002., 2002
Ahsanullah (1988) showed the compatibility between group structures and I‐fuzzy neighborhood systems. In this paper, we require not only that the I‐fuzzy neighborhood systems be compatible with the group structures, but also compatible with the order relation, in one sense or another.
Kamel El-Saady, M. Y. Bakier
wiley   +1 more source

A Pseudo-Measure of Fuzziness [PDF]

open access: yes, 2001
In this note we give an example of a gradationof openness (a fuzzy topology in Shostak’s sense) and deduce from it a pseudo-measure of ...
Estruch, Vicente D., Pastor, José
core   +1 more source

A Novel Approach to Crop Cultivation via Bipolar Interval‐Valued Intuitionistic Fuzzy Bidirectional Projection Measure

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this study, we introduce a bipolar interval‐valued intuitionistic fuzzy (BIVIF) norm, projection, and bidirectional projection measure within the framework of BIVIF topological spaces. These tools enable us to handle ambiguity with greater accuracy, calculate relationships between sets more effectively, and make rational decisions in uncertain ...
Suganya Manivannan   +4 more
wiley   +1 more source

On generalized fuzzy strongly semiclosed sets in fuzzy topological spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 30, Issue 11, Page 651-657, 2002., 2002
We introduce the concept of generalized fuzzy strongly semiclosed, generalized fuzzy almost‐strongly semiclosed, generalized fuzzy strongly closed, and generalized fuzzy almost‐strongly closed sets. In the light of these definitions, we also define some generalizations of fuzzy continuous functions and discuss the relations between these new classes of
Oya Bedre Ozbakir
wiley   +1 more source

A fixed point theorem for fuzzy contraction mappings [PDF]

open access: yes, 1999
In this paper, we give a fixed point theorem for fuzzy contraction mappings in quasi-pseudo-metric spaces which is a generalization of the corresponding one for metric spaces given by S ...
Gregori, Valentín, Pastor, José
core   +1 more source

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