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mathematical analysis > function > elementary function > trigonometric function > Fejér kernel
mathematical analysis > complex analysis > analytic function > trigonometric function > Fejér kernel
... > mathematical analysis > real analysis > real-valued function > analytic function > trigonometric function > Fejér kernel
... > mathematical analysis > functional analysis > transformation > harmonic analysis > trigonometric function > Fejér kernel

Terme préférentiel

Fejér kernel  

Définition

  • 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).
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fej%C3%A9r_kernel)

Concept générique

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http://data.loterre.fr/ark:/67375/PSR-WFXDTTMT-F

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