On Compact Perturbations of Locally Definitizable Selfadjoint Relations in Krein Spaces

Source file is available as :   Postscript Document

Author(s) : Jussi Behrndt , Peter Jonas

Preprint series of the Institute of Mathematics, Technische Universität Berlin
Preprint 07-2003

MSC 2000

47B50 Operators on spaces with an indefinite metric
47A55 Perturbation theory

Keywords : selfadjoint operators in Krein spaces, compact perturbations, definitizable operators, spectral points of positive and negative type, selfadjoint linear relations