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Jan 11 at 19:30 comment converted from answer Juan H. Arredondo When f is of bounded variation the Fourier sine transform F^s(f) and the Fourier cosine transform F^c(f) -which form the Fourier transform of a function f := F^f(f)= F^c(f) -i F^s(f) have different behavior. Respectively, F^s(f) is not (HK-)integrable while F^c(f) is.
Jun 28, 2020 at 5:20 answer added PhoemueX timeline score: 1
Jun 27, 2020 at 20:20 comment added Christian Remling No, for example the FT of step function has decay $1/x$. (I assume that a hat is missing and you're asking if a BV function has integrable FT.)
Jun 27, 2020 at 20:15 history asked A beginner mathmatician CC BY-SA 4.0