Open Access 2020 | OriginalPaper | Buchkapitel
Boundary Triplets and Weyl Functions
verfasst von : Jussi Behrndt, Seppo Hassi, Henk De Snoo
Erschienen in: Boundary Value Problems, Weyl Functions, and Differential Operators
The basic properties of boundary triplets for closed symmetric operators or relations in Hilbert spaces are presented. These triplets give rise to a parametrization of the intermediate extensions of symmetric relations, in particular of the self-adjoint extensions.