- Tytuł:
- On some extensions of the a-model
- Autorzy:
- Jursenas, Rytis
- Powiązania:
- https://bibliotekanauki.pl/articles/255405.pdf
- Data publikacji:
- 2020
- Wydawca:
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
- Tematy:
-
finite rank higher order singular perturbation
cascade (A) model
peak model
Hilbert space
scale of Hilbert spaces
Pontryagin space
ordinary boundary triple
Krein Q-function
Weyl function
gamma field
symmetric operator
proper extension
resolvent - Opis:
- The A-model for finite rank singular perturbations of class [formula], is considered from the perspective of boundary relations. Assuming further that the Hilbert spaces [formula] admit an orthogonal decomposition [formula], with the corresponding projections satisfying [formula], nontrivial extensions in the A-model are constructed for the symmetric restrictions in the subspaces.
- Źródło:
-
Opuscula Mathematica; 2020, 40, 5; 569-597
1232-9274
2300-6919 - Pojawia się w:
- Opuscula Mathematica
- Dostawca treści:
- Biblioteka Nauki
Artykuł