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On lacunary statistical convergence with respect to the intuitionistic fuzzy normed space. (English) Zbl 1183.46070
From the abstract: J. A. Fridy and C. Orhan [Pac. J. Math. 160, No. 1, 43–51 (1993; Zbl 0794.60012)] introduced the idea of lacunary statistical convergence. Quite recently, the concept of statistical convergence of double sequences has been studied in intuitionistic fuzzy normed space by the authors [Chaos Solitons Fractals 41, No. 5, 2414–2421 (2009; doi:10.1016/j.chaos.2008.09.018)]. In this paper, we study lacunary statistical convergence in intuitionistic fuzzy normed spaces. We also introduce here a new concept, that is, statistical completeness, and show that IFNS is statistically complete but not complete.
MSC:
46S40Fuzzy functional analysis