On the similarity of boundary triples of symmetric operators in Krein spaces

Autor: Jursenas, Rytis
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: It is a classical result that the Weyl function of a simple symmetric operator in a Hilbert space determines a boundary triple uniquely up to unitary equivalence. We generalize this result to a simple symmetric operator in a Pontryagin space, where unitary equivalence is replaced by the similarity realized via a standard unitary operator.
Comment: Minor improvements, to appear in Complex. Anal. Oper. Theory
Databáze: arXiv