Instability of singular critical points of definitizable operators
type: Item
instance of: scholarly article
title: Instability of singular critical points of definitizable operators
zbMATH Open document ID: 0897.47031
DOI: 10.1007/BF01198796
published in: Integral Equations and Operator Theory
publication date: 1998-02-05T00:00:00Z
Mathematics Subject Classification ID: 47B50
Mathematics Subject Classification ID: 47A55
zbMATH DE Number: 1113533
zbMATH Keywords: selfadjoint definitizable operator in a Krein space
zbMATH Keywords: finite rank nonnegative perturbation
zbMATH Keywords: singular critical points
author: Heinz Langer
author: B. Najman
MaRDI profile type: Publication
cites work: A Variational Principle in Krein Space
cites work: Matrices and indefinite scalar products
cites work: Q3935724
cites work: A model for \(\pi\)-selfadjoint operators in \(\pi _ 1\)-spaces and a special linear pencil
cites work: Q4748670
cites work: Q3663899
Wikidata QID: Q124629951
full work available at URL: https://doi.org/10.1007/bf01198796
OpenAlex ID: W2031205538
description: scientific article; zbMATH DE number 1113533