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I₂-convergence and I₂-cauchy double sequences in topological groups
(Zonguldak Bülent Ecevit Üniversitesi, 2018-05)
Let 2N×N be a family of all subsets of N×N. Following the definition of ideal convergence in a metric space by Kostyrko et al. in 2000, ideal convergence for double sequences in a metric space was introduced by Das et al. ...
Rough I2-lacunary statistical convergence of double sequences
(Springer, 2018-08)
In this paper, we introduce and study the notion of rough I2-lacunary statistical
convergence of double sequences in normed linear spaces. We also introduce the
notion of rough I2-lacunary statistical limit set of a ...