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Found 745 Documents (Results 101–200)

Restriction and factorization for isometric and symmetric operators in almost Pontryagin spaces. (English) Zbl 1454.47047

Alpay, Daniel (ed.) et al., Noncommutative analysis, operator theory and applications. Selected papers based on the presentations at the conference, Milano, Italy, June 23–27, 2014. Basel: Birkhäuser/Springer. Oper. Theory: Adv. Appl. 252, 123-170 (2016).
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\(Q\)-functions and boundary triplets of nonnegative operators. (English) Zbl 06767990

Alpay, Daniel (ed.) et al., Recent advances in inverse scattering, Schur analysis and stochastic processes. A collection of papers dedicated to Lev Sakhnovich. Cham: Birkhäuser/Springer. Oper. Theory: Adv. Appl. 244, 89-130 (2015).
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On self-adjoint extensions of symmetric operators. (English) Zbl 1390.47001

Arendt, Wolfgang (ed.) et al., Operator semigroups meet complex analysis, harmonic analysis and mathematical physics. Proceedings of the conference, Herrnhut, Germany, June 3–7, 2013. Cham: Birkhäuser/Springer (ISBN 978-3-319-18493-7/hbk; 978-3-319-18494-4/ebook). Operator Theory: Advances and Applications 250, 491-496 (2015).
MSC:  47B25
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Some operator bounds employing complex interpolation revisited. (English) Zbl 1380.47012

Arendt, Wolfgang (ed.) et al., Operator semigroups meet complex analysis, harmonic analysis and mathematical physics. Proceedings of the conference, Herrnhut, Germany, June 3–7, 2013. Cham: Birkhäuser/Springer (ISBN 978-3-319-18493-7/hbk; 978-3-319-18494-4/ebook). Operator Theory: Advances and Applications 250, 213-239 (2015).
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Some remarks on the Krein-von Neumann extension of different Laplacians. (English) Zbl 1343.47031

Banasiak, Jacek (ed.) et al., Semigroups of operators – theory and applications. Selected papers based on the presentations at the conference, Bȩdlewo, Poland, October 6–10, 2013. Cham: Springer (ISBN 978-3-319-12144-4/hbk; 978-3-319-12145-1/ebook). Springer Proceedings in Mathematics & Statistics 113, 69-87 (2015).
MSC:  47B25 35J05
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De Branges spaces and Kreĭn’s theory of entire operators. (English) Zbl 1339.47027

Alpay, Daniel (ed.), Operator theory. With 51 figures and 2 tables. In 2 volumes. Basel: Springer (ISBN 978-3-0348-0666-4/print; 978-3-0348-0667-1/ebook; 978-3-0348-0668-8/print+ebook; 978-3-0348-0692-3/online (updated continuously)). Springer Reference, 549-580 (2015).
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Boundary triplets, Weyl functions, and the Kreĭn formula. (English) Zbl 1347.47015

Alpay, Daniel (ed.), Operator theory. With 51 figures and 2 tables. In 2 volumes. Basel: Springer (ISBN 978-3-0348-0666-4/print; 978-3-0348-0667-1/ebook; 978-3-0348-0668-8/print+ebook; 978-3-0348-0692-3/online (updated continuously)). Springer Reference, 183-218 (2015).
MSC:  47B25 47B50 47-02
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On dynamical properties of a one-parameter family of transformations arising in averaging of semigroups. (English. Russian original) Zbl 1308.81091

J. Math. Sci., New York 202, No. 6, 869-886 (2014); translation from Sovrem. Mat., Fundam. Napravl. 48, 93-110 (2013).
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Method of equipped spaces in the theory of singular perturbations of self-adjoint operators. (Метод оснащених просторів у теорії сингулярних збурень самоспряжених операторів.) (Ukrainian) Zbl 1324.47001

Pratsi Instytutu Matematyky Natsional’noï Akademiï Nauk Ukraïny. Matematyka ta ïï Zastosuvannya 96. Kyïv: Instytut Matematyky NAN Ukraïny (ISBN 978-966-02-6847-0). 320 p. (2013).
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Naĭmark dilations and Naĭmark extensions in favour of moment problems. (English) Zbl 1300.47017

Hassi, Seppo (ed.) et al., Operator methods for boundary value problems. Cambridge: Cambridge University Press (ISBN 978-1-107-60611-1/pbk; 978-1-139-13506-1/ebook). London Mathematical Society Lecture Note Series 404, 275-298 (2012).
MSC:  47A20 47A57
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Boundary triplets and Weyl functions. Recent developments. (English) Zbl 1320.47024

Hassi, Seppo (ed.) et al., Operator methods for boundary value problems. Cambridge: Cambridge University Press (ISBN 978-1-107-60611-1/pbk; 978-1-139-13506-1/ebook). London Mathematical Society Lecture Note Series 404, 161-220 (2012).
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Elliptic operators, Dirichlet-to-Neumann maps and quasi boundary triples. (English) Zbl 1331.47067

Hassi, Seppo (ed.) et al., Operator methods for boundary value problems. Cambridge: Cambridge University Press (ISBN 978-1-107-60611-1/pbk; 978-1-139-13506-1/ebook). London Mathematical Society Lecture Note Series 404, 121-160 (2012).
MSC:  47F05 47B25 47N20
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On Calkin’s abstract symmetric boundary conditions. (English) Zbl 1318.47037

Hassi, Seppo (ed.) et al., Operator methods for boundary value problems. Cambridge: Cambridge University Press (ISBN 978-1-107-60611-1/pbk; 978-1-139-13506-1/ebook). London Mathematical Society Lecture Note Series 404, 3-34 (2012).
MSC:  47B25 47B50 47A20
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On Woronowicz’s approach to the Tomita-Takesaki theory. (English) Zbl 1269.46039

Pusz, Wiesław (ed.) et al., Operator algebras and quantum groups. Proceedings of the conference, Warsaw, Poland, September 19–23, 2011. Warszawa: Polish Academy of Sciences, Institute of Mathematics (ISBN 978-83-86806-17-1/pbk). Banach Center Publications 98, 455-486 (2012).
MSC:  46L10 46L40 47B25
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Truncated trigonometric and Hausdorff moment problems for operators. (English) Zbl 1262.47020

Gaşpar, Dumitru (ed.) et al., An operator theory summer. Proceedings of the 23rd international conference on operator theory, Timişoara, Romania, June 29–July 4, 2010. Bucharest: The Theta Foundation (ISBN 978-973-87899-8-2). Theta Series in Advanced Mathematics 13, 51-61 (2012).
MSC:  47A57 44A60
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