Papers by Biljana Krsteska
The concept of fuzzy pairwise almost strongly precontinuous mappings has been introduced and stud... more The concept of fuzzy pairwise almost strongly precontinuous mappings has been introduced and studied. Their properties and relationships with other classes of early defined weaker forms of fuzzy pairwise continuous mappings has been investigated.
60 BIL.IANA KRSTESKA Definition 2.1. [5,7,8] Let A be a fuzzy set of an ßts X. Then A is called (... more 60 BIL.IANA KRSTESKA Definition 2.1. [5,7,8] Let A be a fuzzy set of an ßts X. Then A is called (1) a (tì,Tj)-fuzzy semiopen set if and only if there exists -n-fuzzy open sei U such thai U < A<Tj-clU; (2) a (tì,Tj)-fuzzy preopen set if and only if A < r¿ - int (tj - clA)\ (3) a (t¿,tj)-fuzzy ...
Intuitionistic fuzzy strongly irresolute precontinuous mappings between intuitionistic fuzzy topo... more Intuitionistic fuzzy strongly irresolute precontinuous mappings between intuitionistic fuzzy topological spaces are introduced. Some of their properties are studied.
Studies in Fuzziness and Soft Computing, 2015
In this paper, we will introduce and characterize intuitionistic fuzzy weakly open mappings betwe... more In this paper, we will introduce and characterize intuitionistic fuzzy weakly open mappings between intuitionistic fuzzy topological spaces. We will investigate their properties and relationships with other early defined classes of intuitionistic fuzzy mappings.
Notes on Instuitionistic Fuzzy Sets
We introduce and study the concepts of (r, s)-fuzzy δ-connected and (r, s)-fuzzy θ-connected for ... more We introduce and study the concepts of (r, s)-fuzzy δ-connected and (r, s)-fuzzy θ-connected for fuzzy sets in an intuitionistic fuzzy topological spaces inŠostak sense as a weaker version of (r, s)-fuzzy connected.
Fuzzy Sets and Systems, 2001
In this note we show that some results which appeared in the article by M.K. Singal and N. Rajvan... more In this note we show that some results which appeared in the article by M.K. Singal and N. Rajvanshi [Fuzzy Sets and Systems 48 (1992) 383-390] are incorrect.
Fuzzy Sets and Systems, 2012
The authors characterize di-uniformities on a texture (S, S) in the sense of Özçag and Brown (Di-... more The authors characterize di-uniformities on a texture (S, S) in the sense of Özçag and Brown (Di-uniform texture spaces, Appl. Gen. Top. 4(1) (2003), 157-192) in terms of functions on the texturing S. This characterization enables quasi-uniformities in the sense of Hutton (Uniformities on Fuzzy Topological Spaces, J. Math. Anal. Appl. 58 (1977) 559-571) to be regarded as diuniformities on the corresponding Hutton Texture, thereby revealing di-uniformities as a generalization of Hutton quasi-uniformities. The effect of imposing a complementation on (S, S) is also considered and several important results established.
Mathematica Moravica, 2007
The concept of fuzzy strong precompactness in Coker's space has been introduced and studied. Seve... more The concept of fuzzy strong precompactness in Coker's space has been introduced and studied. Several preservation properties and some characterizations concerning fuzzy strong precompactness have been obtained.
... 3.3.4. extracting mathematical data from various sources and understanding their overall ... ... more ... 3.3.4. extracting mathematical data from various sources and understanding their overall ... ISJ Iaşi Laurenţiu Duican, Braşov, May 2004, IX-XII grades, the 12th edition Rodica Câmpan ... by implementing specific activities (eg educational technologies assisted by computers) and by ...
institutzamatematika.com
4 ERDAL EKICr AND BILJANA KRSTESKA Proof. Let (x,y) G (X x Y)\G(f). Then f(x) ф у and there exist... more 4 ERDAL EKICr AND BILJANA KRSTESKA Proof. Let (x,y) G (X x Y)\G(f). Then f(x) ф у and there exists a clopen set V" of У such that f(x) GF and y £ V. According to the assumption that / is slightly ^-continuous, it follows that f~x{V) G ßCO(X) containing x. Put U = f~l(V). So f(U) С V. ...
institutzamatematika.com
60 BIL.IANA KRSTESKA Definition 2.1. [5,7,8] Let A be a fuzzy set of an ßts X. Then A is called (... more 60 BIL.IANA KRSTESKA Definition 2.1. [5,7,8] Let A be a fuzzy set of an ßts X. Then A is called (1) a (tì,Tj)-fuzzy semiopen set if and only if there exists -n-fuzzy open sei U such thai U < A<Tj-clU; (2) a (tì,Tj)-fuzzy preopen set if and only if A < r¿ - int (tj - clA)\ (3) a (t¿,tj)-fuzzy ...
fmns.swu.bg
Faculty of Mathematics& Natural ScienceFMNS 2007 76 GENERALIZED FUZZY CONTINUOUS MAPPING... more Faculty of Mathematics& Natural ScienceFMNS 2007 76 GENERALIZED FUZZY CONTINUOUS MAPPINGS Biljana Krsteska, Yong Kim Faculty of Mathematics and Natural Sciences, Skopje, Macedonia Department of Mathematics, Kangnung National University, Korea ...
… Journal of Mathematics and Mathematical Sciences, 2008
T 1 spaces in an intuitionistic fuzzy topological space and investigate some properties of these ... more T 1 spaces in an intuitionistic fuzzy topological space and investigate some properties of these spaces and the relationships between them. Moreover, we study properties of subspaces and their products.
Fuzzy sets and systems, 1999
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Filomat, 2007
The concept of intuitionistic fuzzy contra strongly precontinuous mapping are introduced and stud... more The concept of intuitionistic fuzzy contra strongly precontinuous mapping are introduced and studied. Properties and relationship of intuitionistic fuzzy contra strongly precontinuous mapping are established. Some applications to fuzzy compact spaces are given.
Kragujevac Journal of Mathematics, 2007
Intuitionistic fuzzy strongly irresolute precontinuous mappings between intuitionistic fuzzy topo... more Intuitionistic fuzzy strongly irresolute precontinuous mappings between intuitionistic fuzzy topological spaces are introduced. Some of their properties are studied.
MATEMATICKI VESNIK-BEOGRAD-, 1999
The concepts of fuzzy SP-irresolute continuous, fuzzy SP-irresolute open (closed) mappings, and a... more The concepts of fuzzy SP-irresolute continuous, fuzzy SP-irresolute open (closed) mappings, and a fuzzy SP-homeomorphism are being introduced and studied. Some of their characteristic properties are being considered. Finally, the claim that fuzzy semiregular properties are fuzzy SP-topological is being proved.
Matematički Vesnik, 1999
The concepts of fuzzy SP-irresolute continuous, fuzzy SP-irresolute open (closed) mappings, and a... more The concepts of fuzzy SP-irresolute continuous, fuzzy SP-irresolute open (closed) mappings, and a fuzzy SP-homeomorphism are being introduced and studied. Some of their characteristic properties are being considered. Finally, the claim that fuzzy semiregular properties are fuzzy SP-topological is being proved.
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Papers by Biljana Krsteska