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zbMath0854.47001MaRDI QIDQ3364522

O. L. Safronov

Publication date: 1996

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

differential operators discrete spectrum stability theorem large coupling constant gap of the continuous spectrum indefinite sign perturbations

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Eigenvalue problems for linear operators (47A75) Linear symmetric and selfadjoint operators (unbounded) (47B25) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10)

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