The basis property of the root vectors of weakly perturbed operators

DOI10.1007/BF01157409zbMath0609.47023MaRDI QIDQ1086805

V. G. Dolgolaptev

Publication date: 1983

Published in: Mathematical Notes (Search for Journal in Brave)

zbMATH Keywords

Riesz basisbiorthgonal system of eigenvectorsdual eigenvectors of a weakly perturbed selfadjoint operator with discrete spectrum

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

Cites Work

• Unnamed Item

This page was built for publication: The basis property of the root vectors of weakly perturbed operators