Divergent fourier series: Numerical expe
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C. Boldrighini; S. Frigio; Stanislav A. Molchanov
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Article
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1991
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Springer Netherlands
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English
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An open problem in the theory of Fourier series is whether there are functions f e L1 such that the partial sums S.(f, x) diverge faster than log log n, almost everywhere in x. For a class of particularly 'bad' functions Kahane proved that the rate of divergence is faster than o0og log n). We give h