2024-03-28T22:00:15Z
https://oai.zbmath.org/v1/
oai:zbmath.org:6984773
2018-11-26T10:40:19Z
35
47
81
Ibrogimov, Orif O.; Tretter, Christiane
2018
6984773
English
https://zbmath.org/06984773
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Alpay, Daniel (ed.) et al., Indefinite inner product spaces, Schur analysis, and differential equations. A volume dedicated to Heinz Langer. Cham: Birkhäuser (ISBN 978-3-319-68848-0/hbk; 978-3-319-68849-7/ebook). Operator Theory: Advances and Applications 263. Linear Operators and Linear Systems, 321-334 (2018).
81Q10; 47G10; 47N50; 35P05; 81V35; 81U99
On the spectrum of an operator in truncated Fock space
a