Geodesic
On a Class of Completely Continuous Operators in Hilbert Spaces
Funkcionalʹnyj analiz i ego priloženiâ, Tome 43 (2009) no. 2, pp. 75-79.

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We introduce a class $G$ of completely continuous operators and prove theorems on the spectral structure of these operators. In particular, operators of this class are similar to model operators in de Branges spaces.
Keywords: de Branges space, similarity of operators, unconditional basis. 
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G. M. Gubreev; G. V. Lukashenko. On a Class of Completely Continuous Operators in Hilbert Spaces. Funkcionalʹnyj analiz i ego priloženiâ, Tome 43 (2009) no. 2, pp. 75-79. http://geodesic.mathdoc.fr/item/FAA_2009_43_2_a6/

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