Almost everywhere convergence of Fejér means of two-dimensional triangular Walsh-Fourier series (Q1783694)
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| Language | Label | Description | Also known as |
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| English | Almost everywhere convergence of Fejér means of two-dimensional triangular Walsh-Fourier series |
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Almost everywhere convergence of Fejér means of two-dimensional triangular Walsh-Fourier series (English)
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21 September 2018
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It is proved that the triangular Fejér means \(\sigma_n^{\triangle}f = \frac{1}{n} \sum_{k=0}^{n-1}S_{k,n-k}f\) of the Walsh-Fourier series of a two-dimensional integrable function \(f\) converge almost everywhere to \(f\).
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triangular means
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Fejér means
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Walsh-Fourier series
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