In this paper we introduce the natation difference operator Δrn(m ≥ 0, an integer) for studying properties of some sequence spaces. We define the sequence spaces l∞F(Δm), cF(Δm), cFo(Δm) and investigate their properties like solid‐ness, convergence free, symmetricity, completeness.
Tripathy, B. C., & Baruah, A. (2009). New type of difference sequence spaces of fuzzy real numbers. Mathematical Modelling and Analysis, 14(3), 391-397. https://doi.org/10.3846/1392-6292.2009.14.391-397
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