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Found 33 Documents (Results 1–33)

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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Resolvent matrices and characteristic functions of extensions of isometric operators. (English. Russian original) Zbl 1127.47306

Dokl. Math. 72, No. 3, 917-924 (2005); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 405, No. 4, 454-461 (2005).
MSC:  47B15 47A20 47A10
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Boundary relations and orthogonal coupling of symmetric operators. (English) Zbl 1110.47007

Proceedings of the algorithmic information theory conference, Vaasa, Finland, May 16–18, 2005. Vaasa: Vaasan Yliopisto (ISBN 952-476-124-6/pbk). Vaasan Yliopiston Julkaisuja. Selvityksiä ja Raportteja 124, 41-56 (2005).
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On some classes of extensions of sectorial operators and dual pairs of contractions. (English) Zbl 0985.47005

Dijksma, A. (ed.) et al., Recent advances in operator theory. The Israel Gohberg anniversary volume. Proceedings of the international workshop on operator theory and its applications, IWOTA-98, Groningen, Netherlands, June 30-July 3, 1998. Basel: Birkhäuser. Oper. Theory, Adv. Appl. 124, 401-449 (2001).
MSC:  47A20
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Weyl functions and singular continuous spectra of self-adjoint extensions. (English) Zbl 0988.47003

Gesztesy, Fritz (ed.) et al., Stochastic processes, physics and geometry: New interplays. II. A volume in honor of Sergio Albeverio. Proceedings of the conference on infinite dimensional (stochastic) analysis and quantum physics, Leipzig, Germany, January 18-22, 1999. Providence, RI: American Mathematical Society (AMS). CMS Conf. Proc. 29, 75-84 (2000).
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Characteristic functions of linear operators. (English. Russian original) Zbl 0820.47007

Russ. Acad. Sci., Dokl., Math. 45, No. 2, 417-424 (1992); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 323, No. 5, 816-822 (1992).
Reviewer: M.Shahin (Dallas)
MSC:  47A50 47A20
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The resolvent matrix of an Hermitian operator and a moment problem with gaps. (English. Russian original) Zbl 0756.47027

Sov. Math., Dokl. 42, No. 2, 429-435 (1991); translation from Dokl. Akad. Nauk SSSR 314, No. 2, 273-278 (1990).
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A class of Hermitian operator extensions and the Weyl function. (English. Russian original) Zbl 0715.47013

Sov. Math. 33, No. 5, 116-122 (1989); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1989, No. 5(324), 71-75 (1989).
Reviewer: L.Zsido
MSC:  47B25 47A56 47A20
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A class of Hermitian operator extensions and the Weyl function. (English. Russian original) Zbl 0738.47020

Sov. Math. 33, No. 5, 116-122 (1989); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1989, No. 5(324), 71-75 (1989).
Reviewer: L.Zsido (Roma)
MSC:  47B25 47A56 47A20
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Sectorial extensions of a positive operator, and the characteristic function. (English. Russian original) Zbl 0698.47004

Sov. Math., Dokl. 37, No. 1, 106-110 (1988); translation from Dokl. Akad. Nauk SSSR 298, No. 3, 537-541 (1988).
Reviewer: Wu Jingbo
MSC:  47A20 47B25 34L99
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