On some extensions of the a-model

• Autorzy: Jursenas Rytis

Identyfikatory

DOI

10.7494/OpMath.2020.40.5.569

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

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

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: Opuscula Mathematica
• Rocznik: 2020
• Tom: Vol. 40, no. 5
• Strony: 569--597
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Jursenas Rytis

• Vilnius University Institute of Theoretical Physics and Astronomy Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).