On singular critical points of positive operators in Krein spaces

DOI10.1090/S0002-9939-00-05442-3zbMath0952.47033OpenAlexW1534431765WikidataQ124629995 ScholiaQ124629995MaRDI QIDQ4490222

Branko Ćurgus, Aurelian Gheondea, Heinz K. Langer

Publication date: 10 July 2000

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1090/s0002-9939-00-05442-3

zbMATH Keywords

inversesingular critical pointpositive operator in a Krein space

Mathematics Subject Classification ID

Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Linear operators on spaces with an indefinite metric (47B50)

Cites Work

• Über die Erhaltung der StabilitätJ-positiver Operatoren beiJ-positiven undJ-negativen Störungen
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