Ein Satz über nukleare Operatoren im Hilbertraum.
Integraloperatoren der Spurklasse.
Note to the paper by R. Hempel, A. M. Hinz, and H. Kalf: On the Essential Spectrum of Schrödinger Operators with Spherically Symmetric Potentials.
Some Remarks on a Separation and Limit - point Criterion of Second-order, Ordinary Differential Expressions.
On the point spectrum of self-adjoint extensions.
Expansions in Generalized Eigenfunctions of Selfadjoint Operators.
One-dimensional Schrödinger operators with local point interactions.
Page 1