vol. 41, no. 3 (2021)
New characterizations of reproducing kernel Hilbert spaces and applications to metric geometry
Daniel Alpay, Palle E.T. Jorgensen
Opuscula Math. 41, no. 3 (2021), 283-300,
https://doi.org/10.7494/OpMath.2021.41.3.283
Perturbation series for Jacobi matrices and the quantum Rabi model
Mirna Charif, Lech Zielinski
Opuscula Math. 41, no. 3 (2021), 301-333,
https://doi.org/10.7494/OpMath.2021.41.3.301
Multi-variable quaternionic spectral analysis
Ilwoo Cho, Palle E.T. Jorgensen
Opuscula Math. 41, no. 3 (2021), 335-379,
https://doi.org/10.7494/OpMath.2021.41.3.335
Extensions of dissipative operators with closable imaginary part
Christoph Fischbacher
Opuscula Math. 41, no. 3 (2021), 381-393,
https://doi.org/10.7494/OpMath.2021.41.3.381
Spectrum localization of a perturbed operator in a strip and applications
Michael Gil'
Opuscula Math. 41, no. 3 (2021), 395-412,
https://doi.org/10.7494/OpMath.2021.41.3.395
On the S-matrix of Schrödinger operator with nonlocal δ-interaction
Anna Główczyk, Sergiusz Kużel
Opuscula Math. 41, no. 3 (2021), 413-435,
https://doi.org/10.7494/OpMath.2021.41.3.413
Quadratic inequalities for functionals in l<sup>∞</sup>
Gerd Herzog, Peer Chr. Kunstmann
Opuscula Math. 41, no. 3 (2021), 437-446,
https://doi.org/10.7494/OpMath.2021.41.3.437