On the problem of completeness of root vectors corresponding to the two spectral series of sheaves of M. V. Keldysh

DOI10.1007/BF01089187zbMath0344.47011OpenAlexW2092640849MaRDI QIDQ1232810

G. V. Radzievskij

Publication date: 1977

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

Full work available at URL: https://doi.org/10.1007/bf01089187

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

Cites Work

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• Multiple completeness of eigen and associated vectors of some classes of operator-functions analytic in a disk
• Certain tests for the degree of completeness of the root vectors of operator functions analytic in a sector

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