🌐한국어EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийไทย한국어中文日本語EntityQ854946· pop 14· linked from 457 articles정규 작용소(on a complex Hilbert space) continuous linear operatorAvailable in 14 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCatalanHebrewNederlandsConnectionsinner product spaceEntityspectrumEntityCategoriesLinear operatorsOperator theory