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    • Q-functions of Hermitian contractions of Krein-Ovcharenko type 

      Arlinskiĭ, Yury; Hassi, Seppo; Snoo, Henk de (Vaasan yliopisto, 2003)
      workingPaper
      Operator valued Q-functions of Krein-Ovcharenko type are introduced. Such functions arise from the extension theory of Hermitian contractive operators A in a Hilbert space H. The definition is related to the investigations ...