On the rate of Cesàro summability of orthogonal series (Q807915)
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scientific article; zbMATH DE number 4208785
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the rate of Cesàro summability of orthogonal series |
scientific article; zbMATH DE number 4208785 |
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On the rate of Cesàro summability of orthogonal series (English)
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1990
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The author obtains estimates, unimprovable as to the order of magnitude of the rate of a.e. summability by Cesàro methods \((C,\alpha >0)\) of orthogonal expansions of square integrable functions under conditions ensuring a specific rate of decrease of the coefficients of these expansions, details of which are cited in the paper.
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Cesàro summability
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orthogonal series
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orthogonal expansions
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square integrable functions
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