Let's say, there is a function $\Sigma^{\infty}_{k=1} \frac{\cos 2k x}{\sqrt{2k \ln 2k}}$, how do I prove or disprove that it is a Fourier transformation for some function?
2026-04-02 01:05:41.1775091941
How to prove or disprove that the series are Fourier transformation for some function.
33 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in SEQUENCES-AND-SERIES
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