## Weak type estimates for singular values and the number of bound states of Schrödinger operators.(English)Zbl 0362.47006

### MSC:

 47B10 Linear operators belonging to operator ideals (nuclear, $$p$$-summing, in the Schatten-von Neumann classes, etc.) 47A10 Spectrum, resolvent 47F05 General theory of partial differential operators 35J10 Schrödinger operator, Schrödinger equation 35P15 Estimates of eigenvalues in context of PDEs
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