On matrix rapid filters

Volume 154 / 1997

Winfried Just, Peter Vojtáš Fundamenta Mathematicae 154 (1997), 177-182 DOI: 10.4064/fm-154-2-177-182


Galois-Tukey equivalence between matrix summability and absolute convergence of series is shown and an alternative characterization of rapid ultrafilters on ω is derived.


  • Winfried Just
  • Peter Vojtáš

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