🌐EnglishEnglishDeutschFrançaisItalianoPortuguêsРусский中文日本語EntityQ1402176· pop 10· linked from 17 articlesFejér kernelAlso known as Fejer kernelFamily of functions in mathematicsAvailable in 10 languagesFrançaisDeutsch中文日本語РусскийItalianoBulgarianHebrewUkrainianvia Wikidata sitelinks · CC0ConnectionsHungaryCountrymathematicsEntityCategoriesFourier series