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Displaying similar documents to “Some remarks on inaccessible alephs”

On Averaging Null Sequences of Real-Valued Functions

Kiriakouli, P. Ch. (2000)

Serdica Mathematical Journal

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If ξ is a countable ordinal and (fk) a sequence of real-valued functions we define the repeated averages of order ξ of (fk). By using a partition theorem of Nash-Williams for families of finite subsets of positive integers it is proved that if ξ is a countable ordinal then every sequence (fk) of real-valued functions has a subsequence (f'k) such that either every sequence of repeated averages of order ξ of (f'k) converges uniformly to zero or no sequence of repeated averages of order...