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On the extensions of symmetrical relations. (Russian) Zbl 0379.47010


MSC:

47A99 General theory of linear operators
47A20 Dilations, extensions, compressions of linear operators
47A55 Perturbation theory of linear operators
47A10 Spectrum, resolvent
47B10 Linear operators belonging to operator ideals (nuclear, \(p\)-summing, in the Schatten-von Neumann classes, etc.)
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