Results 41 to 50 of about 1,991 (192)

A Study of Frontier and Semifrontier in Intuitionistic Fuzzy Topological Spaces

open access: yesThe Scientific World Journal, 2014
Notions of frontier and semifrontier in intuitionistic fuzzy topology have been studied and several of their properties, characterizations, and examples established.
Athar Kharal
doaj   +1 more source

Hidden modalities in algebras with negation and implication [PDF]

open access: yes, 2013
Lukasiewicz 3-valued logic may be seen as a logic with hidden truthfunctional modalities de ned by A := :A ! A and A := :(A ! :A). It is known that axioms (K), (T), (B), (D), (S4), (S5) are provable for these modalities, and rule (RN) is admissible. We
Järvinen, Jouni   +3 more
core   +1 more source

Covering properties in intuitionistic fuzzy topological spaces [PDF]

open access: yesKybernetes, 2007
PurposeD.Çoker constructed the fundamental theory of intuitionistic fuzzy topological spaces. The purpose of this paper is to introduce a new concept of compactness and a definition of paracompactness for intuitionistic fuzzy topological spaces, and obtain several preservation properties.Design/methodology/approachTwo new covering properties in ...
openaire   +3 more sources

Separation Axioms in Intuitionistic Fuzzy Topological Spaces

open access: yesAdvances in Fuzzy Systems, 2012
In this paper we have studied separation axiomsTi,i=0,1,2in an intuitionistic fuzzy topological space introduced by Coker. We also show the existence of functorsℬ:IF-Top→BF-Topand𝒟:BF-Top→IF-Topand observe that𝒟is left adjoint toℬ.
Amit Kumar Singh, Rekha Srivastava
openaire   +2 more sources

A Neutrosophic Set‐Based Active Contour Model for Medical Image Segmentation

open access: yesIET Image Processing, Volume 20, Issue 1, January/December 2026.
We propose a neutrosophic set‐based active contour model for accurate and efficient segmentation of magnetic resonance (MR) and retinal images. By combining neutrosophic truth, falsity, and indeterminacy subsets with a Heaviside‐based level set formulation, the method robustly handles noise, intensity inhomogeneity, and weak edges.
Kazım Hanbay
wiley   +1 more source

Multidimensional Topological Measure Spaces and Their Applications in Decision‐Making Problems

open access: yesAdvances in Fuzzy Systems, Volume 2026, Issue 1, 2026.
This paper presents a generalized framework termed the multidimensional topological measure space (MDTMS), developed through multidimensional fuzzy sets, multidimensional topology, and an associated distance measure. The suggested framework enhances traditional fuzzy models by facilitating a more nuanced representation and examination of intricate ...
Jomal Josen   +3 more
wiley   +1 more source

Obtaining contradiction measure on intuitionistic fuzzy sets from fuzzy connectives [PDF]

open access: yes, 2012
In a previous paper, we proposed an axiomatic model for measuring self-contradiction in the framework of Atanassov fuzzy sets. This way, contradiction measures that are semicontinuous and completely semicontinuous, from both below and above, were ...
Castiñeira Holgado, Elena   +2 more
core   +3 more sources

Edelstein Fixed Point Theorem in Neutrosophic Metric Spaces With an Application to an SIR‐Type Epidemic Model

open access: yesInternational Journal of Differential Equations, Volume 2026, Issue 1, 2026.
In this paper, utilizing the concept of neutrosophic metric spaces proposed by Kirisci and Simsek, we establish a fixed point theorem of Edelstein type within this framework. A numerical example is provided to illustrate the validity of the main result. Furthermore, we present an application to a general SIR‐type epidemic model.
Vishal Gupta   +3 more
wiley   +1 more source

Delving Into the Depths of the Properties and Behavior of Bipolar Pythagorean Neutrosophic Metric Spaces: A Theoretical Analysis

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This paper advances the theory of bipolar Pythagorean neutrosophic fuzzy (BPNF) sets by establishing their formalization within a topological and metric framework, while also demonstrating their role in decision‐making under uncertainty. The main contributions are as follows: (1) definition and characterization of BPNF topological spaces, providing a ...
Akiladevi Natarajan   +5 more
wiley   +1 more source

Covering-Based Rough Fuzzy, Intuitionistic Fuzzy and Neutrosophic Nano Topology and Applications

open access: yesIEEE Access, 2019
In recent years, “mathematical orientations on real-life problems”, which continue to increase, began to make a significant impact. Information systems for many decision-making problems consist of uncertain, incomplete, indeterminate and ...
Mohammed A. Al Shumrani   +3 more
doaj   +1 more source

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