scientific article; zbMATH DE number 3239038
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Publication:5526485
zbMath0148.12601MaRDI QIDQ5526485
Publication date: 1966
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Perturbation theories for operators and differential equations in quantum theory (81Q15) Research exposition (monographs, survey articles) pertaining to operator theory (47-02) Inner product spaces and their generalizations, Hilbert spaces (46Cxx)
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