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Article
On Singular Critical Points of Positive Operators in Krein Spaces
Proceedings of the American Mathematical Society
  • Branko Ćurgus, Western Washington University
  • Aurelian Gheondea
  • Heinz Langer
Document Type
Article
Publication Date
9-1-2000
Disciplines
Abstract
We give an example of a positive operator B in a Krein space with the following properties: the nonzero spectrum of B consists of isolated simple eigenvalues, the norms of the orthogonal spectral projections in the Krein space onto the eigenspaces of B are uniformly bounded and the point ∞ is a singular critical point of B.
Required Publisher's Statement

Communicated by David R. Larson

Comments

Communicated by David R. Larson

Language
English
Format
application/pdf
Citation Information
Branko Ćurgus, Aurelian Gheondea and Heinz Langer. "On Singular Critical Points of Positive Operators in Krein Spaces" Proceedings of the American Mathematical Society Vol. 128 Iss. 9 (2000) p. 2621 - 2626
Available at: http://works.bepress.com/branko_curgus/3/