## Remarks on the spectral shift function.(Russian)Zbl 0329.47009

### MSC:

 47B10 Linear operators belonging to operator ideals (nuclear, $$p$$-summing, in the Schatten-von Neumann classes, etc.) 47A55 Perturbation theory of linear operators 47B15 Hermitian and normal operators (spectral measures, functional calculus, etc.)
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