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