About: Quasinormal operator

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In operator theory, quasinormal operators is a class of bounded operators defined by weakening the requirements of a normal operator. Every quasinormal operator is a subnormal operator. Every quasinormal operator on a finite-dimensional Hilbert space is normal.

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  • In operator theory, quasinormal operators is a class of bounded operators defined by weakening the requirements of a normal operator. Every quasinormal operator is a subnormal operator. Every quasinormal operator on a finite-dimensional Hilbert space is normal. (en)
  • 作用素論における準正規作用素（じゅんせいきさようそ、英: quasinormal operator）は正規作用素の条件を緩めた定義を持つ有界作用素のクラスである。 任意の準正規作用素は (subnormal) であり、また有限次元ヒルベルト空間の準正規作用素は必ず正規である。 (ja)
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  • In operator theory, quasinormal operators is a class of bounded operators defined by weakening the requirements of a normal operator. Every quasinormal operator is a subnormal operator. Every quasinormal operator on a finite-dimensional Hilbert space is normal. (en)
  • 作用素論における準正規作用素（じゅんせいきさようそ、英: quasinormal operator）は正規作用素の条件を緩めた定義を持つ有界作用素のクラスである。 任意の準正規作用素は (subnormal) であり、また有限次元ヒルベルト空間の準正規作用素は必ず正規である。 (ja)
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  • Quasinormaler Operator (de)
  • 準正規作用素 (ja)
  • Quasinormal operator (en)
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