🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPolskiPortuguêsTürkçeРусский한국어中文日本語EntityQ2096184· pop 13· linked from 93 articlesPlancherel theoremtheorem in harmonic analysisAvailable in 13 languagesFrançaisDeutsch中文日本語РусскийPortuguêsItalianoAlbanianCatalanPolskiConnectionssquare-integrable functionEntityisometryEntityCategoriesLp spacesTheorems in Fourier analysisTheorems in functional analysisTheorems in harmonic analysis