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Analysis with weak trace ideals and the number of bound states of Schrödinger operators. (English) Zbl 0348.47017

##### MSC:
 47B10 Linear operators belonging to operator ideals (nuclear, $$p$$-summing, in the Schatten-von Neumann classes, etc.) 47L05 Linear spaces of operators 35P20 Asymptotic distributions of eigenvalues in context of PDEs 35J10 Schrödinger operator, Schrödinger equation
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