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\iteman{ZMATH 1998d.02845}
\itemau{Colzani, Leonardo}
\itemti{An Euler-Fourier series and the Wilbraham-Gibbs phenomenon. (Una serie di Eulero - Fourier e il fenomeno di Wilbraham - Gibbs.)}
\itemso{Lett. mat. Pristem, No. 26, 27-34 (1997).}
\itemab
The author discusses from a mathematical and historical point of view Wilbraham-Gibbs phenomenon, namely the fact that if we write the Fourier series of any ``reasonable'' locally integrable function, with period $2\pi$, the series converges in every point -- but if we take a function with a jump, in a neighbourhood of the discontinuity the partial sums of the Fourier series have fast oscillations and ``miss the target'' by approximately 9\% of the value of the jump.
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\itemcc{I35}
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