Summability kernel
id:
summability-kernel-172-2620149
title:
Summability kernel
text:
In mathematics, a summability kernel is a family or sequence of periodic integrable functions satisfying a certain set of properties, listed below. Certain kernels, such as the Fejér kernel, are particularly useful in Fourier analysis. Summability kernels are related to approximation of the identity; definitions of an approximation of identity vary, but sometimes the definition of an approximation of the identity is taken to be the same as for a summability kernel.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Summability_kernel
date created:
2014-04-30T06:26:49Z
date modified:
2024-09-01T17:19:56Z
main entity:
{"identifier":"Q17052475","url":"https://www.wikidata.org/entity/Q17052475"}
image:
fields total:
13
integrity:
14