🌐EnglishEnglishEspañolFrançaisItalianoNederlandsالعربية中文日本語EntityQ5280760· pop 7· linked from 24 articlesDirichlet's energyhalf of the integral of the squared gradient of a function on its domainAvailable in 7 languagesEspañolFrançais日本語ItalianoالعربيةNederlandsvia Wikidata sitelinks · CC0ConnectionsmathematicsEntityInternational Standard Book NumberEntityCategoriesCalculus of variationsPartial differential equations