Article ID Journal Published Year Pages File Type
4620487 Journal of Mathematical Analysis and Applications 2009 12 Pages PDF
Abstract

Kreĭn's formula provides a parametrization of the generalized resolvents and Štraus extensions of a closed symmetric operator with equal possibly infinite defect numbers in a Hilbert space in terms of Nevanlinna families in a parameter space. The aim of this note is to give a simple complete analytical proof of Kreĭn's formula.

Related Topics
Physical Sciences and Engineering Mathematics Analysis