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连续函数的傅里叶级数为什么还可以不收敛？
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https://en.wikipedia.org/wiki/Paul_du_Bois-Reymond 中提到: he was able in 1873 to construct a continuous function whose Fourier series is not convergent. 这与狄利克雷条件不是矛盾的吗？ |
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