🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийفارسی한국어中文日本語EntityQ537618· pop 17· linked from 451 articlesBanach–Alaoglu theoremtheoremAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoCatalanFinnishHebrewConnectionsweak topologyEntitydual spaceEntityCategoriesCompactness theoremsLinear functionalsTheorems in functional analysisTopological vector spaces