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zbMath0648.47016MaRDI QIDQ3793230

Shan Li Sun

Publication date: 1987

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

zbMATH Keywords

spectral multiplicity changing of spectra of selfadjoint operators under finite rank perturbations

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25)

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