🌐EnglishEnglishEspañolItalianoPortuguêsSvenskaРусский中文日本語EntityQ5761180· pop 6· linked from 25 articlesHilbert's twenty-third problemPromotes work on calculus of variationsAvailable in 6 languagesEspañol中文PortuguêsGreekSvenskavia Wikidata sitelinks · CC0ConnectionsHilbert's problemsEntityAmerican Mathematical SocietyEntityCategoriesCalculus of variationsHilbert's problems