Strong Summability of Two-Dimensional Vilenkin–Fourier Series

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We study the exponential uniform strong summability of two-dimensional Vilenkin–Fourier series. In particular, it is proved that the two-dimensional Vilenkin–Fourier series of a continuous function f is uniformly strongly summable to a function f exponentially in the power 1/2. Moreover, it is proved that this result is best possible.

Original languageEnglish
Pages (from-to)387-401
Number of pages15
JournalUkrainian Mathematical Journal
Issue number3
Publication statusPublished - Aug 1 2019
Externally publishedYes

ASJC Scopus subject areas

  • General Mathematics


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