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Found 15 Documents (Results 1–15)

Self-adjoint extensions of a symmetric linear relation with finite defect: compressions and Straus subspaces. (English) Zbl 1520.47005

Alpay, Daniel (ed.) et al., Complex function theory, operator theory, Schur analysis and systems theory. A volume in honor of V. E. Katsnelson. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 280, 287-325 (2020).
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Approximation of \({\mathcal N}^\infty_\kappa\)-functions. II: Convergence of models. (English) Zbl 1192.47036

Behrndt, Jussi (ed.) et al., Recent advances in operator theory in Hilbert and Krein spaces. Papers of the 7th workshop on operator theory in Krein spaces and spectral analysis, TU Berlin, Germany, December 13–16, 2007. Dedicated to Peter Jonas. Basel: Birkhäuser (ISBN 978-3-0346-0179-5/hbk; 978-3-0346-0180-1/ebook). Operator Theory: Advances and Applications 198, 125-169 (2010).
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Approximation of \(\mathcal N _{\kappa }^{\infty }\)-functions. I: Models and regularization. (English) Zbl 1182.47037

Behrndt, Jussi (ed.) et al., Spectral theory in inner product spaces and applications. Papers of the 6th workshop on operator theory in Krein spaces and operator polynomials, TU Berlin, Germany, December 14–17, 2006. Basel: Birkhäuser (ISBN 978-3-7643-8910-9/hbk). Operator Theory: Advances and Applications 188, 87-112 (2009).
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Minimal models for \({\mathcal N}_\kappa^\infty\)-functions. (English) Zbl 1111.47026

Langer, Matthias (ed.) et al., Operator theory and indefinite inner product spaces. Presented on the occasion of the retirement of Heinz Langer in the colloquium on operator theory, Vienna, March 2004. Basel: Birkhäuser (ISBN 3-7643-7515-9/hbk). Operator Theory: Advances and Applications 163, 97-134 (2006).
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