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 that gives rise to an approximate identity, and it is named after the Hungarian mathematician Lipót Fejér, who lived from 1880 to 1959. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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1. Fejér Kernel (Wikipedia)
Attributed To: Lipót Fejér, Lead section
It is named after the Hungarian mathematician Lipót Fejér (1880-1959).
In Branch: Harmonic Analysis, Lead section
kernel used to express the effect of Cesàro summation on Fourier series. It is a non-negative kernel, giving rise
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