Abstract
We first introduce a new notion called statistical convergence of order α and primarily show that it gives rise to a decreasing chain of closed linear subspaces of the space of all bounded real sequences with sup norm which never coincides with the class of convergent sequences and in fact their intersection properly contains the class of convergent sequences. We then show that the same method can be applied for double sequences also and introduce the notion of statistical convergence of order (α,β).
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Bhunia, S., Das, P. & Pal, S.K. Restricting statistical convergence. Acta Math Hung 134, 153–161 (2012). https://doi.org/10.1007/s10474-011-0122-2
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DOI: https://doi.org/10.1007/s10474-011-0122-2
Keywords
- natural density of order α
- statistical convergence of order α
- double density of order (α,β)
- statistical convergence of order (α,β)
- convergence
- closed linear subspace