Abstract:In this article we introduce the notion of I-convergent and I-Cauchy double sequences in a fuzzy normed linear space and establish some basic results related to these notions. Further, we define I-limit points and I-cluster points of a double sequence in a fuzzy normed linear space and investigate the relations between these concepts.
“…The notion of deal convergence was introduced first by Kostyrko et al [24] as a generalization of statistical convergence which was further studied in toplogical spaces by Kumar et al[25,26] and also more applications of ideals can be deals with various authors by B.Hazarika [27][28][29][30][31][32][33][34][35][36][37][38][39] and B.C.Tripathy and B. Hazarika [40][41][42][43].…”
Section: Definition 1 Let X Be a Linear Metric Space A Functionmentioning
In this article we introduce the sequence spaces χ 2q f µ , (d (x 1 , 0) , d (x 2 , 0) , • • • , d (x n−1 , 0)) p I(F) and Λ 2q f µ , (d (x 1 , 0) , d (x 2 , 0) , • • • , d (x n−1 , 0)) p I(F) , associated with the integrated sequence space defined by Musielak. We study some basic topological and algebraic properties of these spaces. We also investigate some inclusion relations related to these spaces.
“…The notion of deal convergence was introduced first by Kostyrko et al [24] as a generalization of statistical convergence which was further studied in toplogical spaces by Kumar et al[25,26] and also more applications of ideals can be deals with various authors by B.Hazarika [27][28][29][30][31][32][33][34][35][36][37][38][39] and B.C.Tripathy and B. Hazarika [40][41][42][43].…”
Section: Definition 1 Let X Be a Linear Metric Space A Functionmentioning
In this article we introduce the sequence spaces χ 2q f µ , (d (x 1 , 0) , d (x 2 , 0) , • • • , d (x n−1 , 0)) p I(F) and Λ 2q f µ , (d (x 1 , 0) , d (x 2 , 0) , • • • , d (x n−1 , 0)) p I(F) , associated with the integrated sequence space defined by Musielak. We study some basic topological and algebraic properties of these spaces. We also investigate some inclusion relations related to these spaces.
“…In [16], Savas and Das extended the conception of ideal convergence as studied by Kostyrko et al [14] to I -statistical convergence and examined remarkable basic features of it. For different studies on these topics, we refer to [17][18][19][20][21][22][23].…”
In this paper, some existing theories on convergence of fuzzy number sequences are extended to
I
2
-statistical convergence of fuzzy number sequence. Also, we broaden the notions of
I
-statistical limit points and
I
-statistical cluster points of a sequence of fuzzy numbers to
I
2
-statistical limit points and
I
2
-statistical cluster points of a double sequence of fuzzy numbers. Also, the researchers focus on important fundamental features of the set of all
I
2
-statistical cluster points and the set of all
I
2
-statistical limit points of a double sequence of fuzzy numbers and examine the relationship between them.
“…Dündar and Talo [15,16] introduced the concepts of I 2 -convergence and I 2 -Cauchy sequence for double sequences of fuzzy numbers and studied some properties and relations of them. Hazarika and Kumar [17] introduced the notion of I 2 -convergence and I 2 -Cauchy double sequences in a fuzzy normed linear space. Dündar and Türkmen [18] studied some properties of I 2 -convergence and I * 2 -convergence of double sequences in fuzzy normed spaces.…”
The concept I-Cauchy and I * -Cauchy sequences were studied by Gürdal and Ac . ık in [On I-Cauchy sequences in 2-normed spaces, Math. Inequal. Appl. 11 (2) (2008), [349][350][351][352][353][354]. In this paper, we introduce the notions of I2-Cauchy and I * 2 -Cauchy double sequences, and study their some properties with the property (AP2) in 2-normed spaces.
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