Geodesic
Operators in Krein Space
Matematičeskie zametki, Tome 76 (2004) no. 3, pp. 324-334 
T. Ya. Azizov; L. I. Sukhocheva; V. A. Shtraus. Operators in Krein Space. Matematičeskie zametki, Tome 76 (2004) no. 3, pp. 324-334. http://geodesic.mathdoc.fr/item/MZM_2004_76_3_a1/
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     title = {Operators in {Krein} {Space}},
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Voir la notice de l'article provenant de la source Math-Net.Ru

We study self-adjoint operators in Krein space. Our goal is to show that there is a relationship between the following classes of operators: operators with a compact “corner”, definitizable operators, operators of classes $(\mathbf H)$ and $\mathbf K(\mathbf H)$, and operators of class $D_\kappa^+$.

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