🌐EnglishEnglishDeutschItalianoPolskiРусский한국어中文日本語EntityQ1518047· pop 9· linked from 472 articlesHilbert–Schmidt operatorAlso known as Hilbert-Schmidt operatornuclear operator of order 2; a bounded operator A on a Hilbert space H such that tr(A*A) is finiteAvailable in 9 languagesDeutsch中文日本語РусскийItalianoPolskiUkrainian한국어via Wikidata sitelinks · CC0Connectionsinner product spaceEntitytrace class operatorEntityCategoriesLinear operatorsOperator theory