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Found 49 Documents (Results 1–49)

A class of singular perturbations of the Dirac operator: boundary triplets and Weyl functions. (English) Zbl 1506.47034

de Snoo, H. S. V. (ed.) et al., Contributions to mathematics and statistics. Essays in honor of Seppo Hassi. Vaasa: University of Vaasa, School of Technology and Innovation. Acta Wasaensia 462, 15-35 (2021).
MSC:  47B25 47A55 34L40
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Quasi boundary triples, self-adjoint extensions, and Robin Laplacians on the half-space. (English) Zbl 1425.35123

Alpay, Daniel (ed.) et al., Linear systems, signal processing and hypercomplex analysis. Selected papers of the conference on mathematics, signal processing and linear systems: new problems and directions, Chapman University, Orange, CA, USA, November 14–19, 2017. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 275, 49-66 (2019).
MSC:  35P05 47B25 47F05
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Trace formulae for Schrödinger operators with singular interactions. (English) Zbl 1372.81055

Dittrich, Jaroslav (ed.) et al., Functional analysis and operator theory for quantum physics. The Pavel Exner anniversary volume. Dedicated to Pavel Exner on the occasion of his 70th birthday. Zürich: European Mathematical Society (EMS) (ISBN 978-3-03719-175-0/hbk; 978-3-03719-675-5/ebook). EMS Series of Congress Reports, 129-152 (2017).
MSC:  81Q10 46F10 47B10
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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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Generalized resolvents of a class of symmetric operators in Krein spaces. (English) Zbl 1138.47030

Förster, Karl-Heinz (ed.) et al., Operator theory in inner product spaces. Papers of the 4th workshop on operator theory in Krein spaces and applications, TU Berlin, Germany, December 17–19, 2004. Basel: Birkhäuser (ISBN 978-3-7643-8269-8/hbk). Operator Theory: Advances and Applications 175, 13-32 (2007).
MSC:  47B50 47B25 47A10
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On generalized resolvents of symmetric operators of defect one with finitely many negative squares. (English) Zbl 1107.47025

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, 21-30 (2005).
MSC:  47B50 47B25
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