On the defect of nondenseness of continuous imbeddings in the scale of Hilbert spaces von Bozhok, R. V., Божок, Р. В.

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Singular Perturbations of Self-Adjoint Operators Associated with Rigged Hilbert Spaces von Bozhok, R. V., Koshmanenko, V. D., Божок, Р. В., Кошманенко, В. Д.

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