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Article
Publication date: 1 June 2006

Francisco Gallego Lupiáñez

In 2000, Wang and He published an important result on the theory of intuitionistic fuzzy sets (IFSs). Indeed, they showed that every IFS may be regarded as an L‐fuzzy set for some…

383

Abstract

Purpose

In 2000, Wang and He published an important result on the theory of intuitionistic fuzzy sets (IFSs). Indeed, they showed that every IFS may be regarded as an L‐fuzzy set for some appropriate lattice L. This paper aims to show that, nevertheless, the results obtained by various authors on intuitionistic fuzzy topological spaces (IFTSs), are not redundant with others for the ordinary fuzzy sense.

Design/methodology/approach

The most important definitions and results on intuitionistic fuzzy topology (IFT) one compared with the result obtained by Wang and He.

Findings

That these results are not redundant.

Research limitations/implications

Clearly, this paper is devoted to IFTSs.

Practical implications

The main applications are in the mathematical field.

Originality/value

The originality and value of IFT are here demonstrated.

Details

Kybernetes, vol. 35 no. 5
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 10 April 2009

Francisco Gallego Lupiáñez

In 2005, Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) to neutrosophic sets (NS), and other researchers introduced the notion of interval neutrosophic…

247

Abstract

Purpose

In 2005, Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) to neutrosophic sets (NS), and other researchers introduced the notion of interval neutrosophic set (INSs), which is an instance of NS, and studied various properties. The notion of neutrosophic topology on the non‐standard interval is also due to Smarandache. The purpose of this paper is to study relations between INSs and topology.

Design/methodology/approach

The paper investigates the possible relations between INSs and topology.

Findings

Relations on INSs and neutrosophic topology.

Research limitations/implications

Clearly, the paper is confined to IFSs and NSs.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy sets and topology.

Details

Kybernetes, vol. 38 no. 3/4
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 2 March 2012

Francisco Gallego Lupiáñez

The purpose of this paper is to obtain an axiomatic characterization of Lowen's fuzzy compactness.

135

Abstract

Purpose

The purpose of this paper is to obtain an axiomatic characterization of Lowen's fuzzy compactness.

Design/methodology/approach

The paper shows a characterization of Lowen's fuzzy compactness.

Findings

The paper shows new results on fuzzy compactness.

Research limitations/implications

Clearly, this paper is devoted to fuzzy topological spaces.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper presents original results on fuzzy topology.

Details

Kybernetes, vol. 41 no. 1/2
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 20 February 2007

Francisco Gallego Lupiáñez

To define some new kinds of fuzzy maps related with c‐zero dimensionality fuzzy, and various notions of fuzzy connectedness (due to Fatteh and Bassan, and Ajmal and Kohli…

281

Abstract

Purpose

To define some new kinds of fuzzy maps related with c‐zero dimensionality fuzzy, and various notions of fuzzy connectedness (due to Fatteh and Bassan, and Ajmal and Kohli, respectively), and obtain several properties about them.

Design/methodology/approach

The paper shows several properties of some new fuzzy maps.

Findings

The paper shows new results on fuzzy maps and various notios of fuzzy connectedness.

Research limitations/implications

Clearly, this paper is devoted to fuzzy topological spaces.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy topology.

Details

Kybernetes, vol. 36 no. 2
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 4 May 2010

Francisco Gallego Lupiáñez

Recently, F. Smarandache generalized the Atanassov's intuitionistic fuzzy sets and other kinds of sets to neutrosophic sets (NSs). Also, this author introduced a general…

109

Abstract

Purpose

Recently, F. Smarandache generalized the Atanassov's intuitionistic fuzzy sets and other kinds of sets to neutrosophic sets (NSs). Also, this author introduced a general definition of neutrosophic topology. On the other hand, there exist various kinds of paraconsistent logics, where some contradiction is admissible. The purpose of this paper is to show that a Smarandache's definition of neutrosophic paraconsistent topology is not a generalization of Çoker's intuitionistic fuzzy topology (IFT) or Smarandache's general neutrosophic topology.

Design/methodology/approach

The possible relations between the IFT and the neutrosophic paraconsistent topology are studied.

Findings

Relations on IFT and neutrosophic paraconsistent topology are shown.

Research limitations/implications

Clearly, the paper is confined to IFSs and NSs.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy sets and topology.

Details

Kybernetes, vol. 39 no. 4
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 17 June 2008

Francisco Gallego Lupiáñez

Recently, Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) and other kinds of sets to neutrosophic sets (NSs). Also, this author defined the notion of…

235

Abstract

Purpose

Recently, Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) and other kinds of sets to neutrosophic sets (NSs). Also, this author defined the notion of neutrosophic topology on the non‐standard interval. One can expect some relation between the intuitionistic fuzzy topology (IFT) on an IFS and the neutrosophic topology. This paper aims to show that this is false.

Design/methodology/approach

The possible relation between the IFT and the neutrosophic topology is studied.

Findings

Relations on neutrosophic topology and IFT are found.

Research limitations/implications

Clearly, this paper is confined to IFSs and NSs.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy sets and topology.

Details

Kybernetes, vol. 37 no. 6
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 12 June 2009

Francisco Gallego Lupiáñez

Recently, F. Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) and other kinds of sets to neutrosophic sets (NSs) and also defined various notions of…

121

Abstract

Purpose

Recently, F. Smarandache generalized the Atanassov's intuitionistic fuzzy sets (IFSs) and other kinds of sets to neutrosophic sets (NSs) and also defined various notions of neutrosophic topologies on the non‐standard interval. One can expect some relation between the intuitionistic fuzzy topology (IFT) on an IFS and neutrosophic topologies on the non‐standard interval. The purpose of this paper is to show that this is false.

Design/methodology/approach

The possible relations between the intuitionistic fuzzzy topology and neutrosophic topologies are studied.

Findings

Relations on IFT and neutrosophic topologies.

Research limitations/implications

Clearly, the paper is confined to IFSs and NSs.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy sets and topology.

Details

Kybernetes, vol. 38 no. 6
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 19 June 2007

Francisco Gallego Lupiáñez

D.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…

261

Abstract

Purpose

D.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/approach

Two new covering properties in intuitionistic fuzzy topological spaces are defined and studied.

Findings

Relations on these new properties and covering properties on fuzzy topology in the Chang's sense are obtained.

Research/limitations/implications

Clearly, this paper is devoted to intuitionistic fuzzy topological spaces.

Practical implications

The main applications are in the mathematical field.

Originality/value

The paper shows original results on fuzzy topology.

Details

Kybernetes, vol. 36 no. 5/6
Type: Research Article
ISSN: 0368-492X

Keywords

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