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#fejér_kernel

Fejér kernel

In mathematics, the Fejér kernel is a summability kernel used to express the effect of Cesàro summation on Fourier series. It is a non-negative kernel, giving rise to an approximate identity. It is named after the Hungarian mathematician Lipót Fejér (1880–1959).

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Fejér kernel Dirac delta function Lipót Fejér Fejér's theorem Summability kernel Convergence of Fourier series Dirichlet kernel List of Fourier analysis topics Fourier series Gibbs phenomenon
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