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zbMath0479.47012MaRDI QIDQ3938075

M. S. Agranovich

Publication date: 1980

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

zbMATH Keywords

Fourier series root vectors basis of eigenvectors operators near selfadjoint operators

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) General harmonic expansions, frames (42C15) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

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On the basis property of root vectors of a perturbed self-adjoint operator ⋮ The Dirac operator with complex-valued summable potential

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