Completeness of the system of root vectors of operators in a space with indefinite metric

DOI10.1007/BF01077986zbMath0722.47021OpenAlexW2031209960MaRDI QIDQ756091

D. Kharzeev

Publication date: 1987

Published in: Functional Analysis and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01077986

zbMATH Keywords

compactnessindefinite metricHilbert space operatorscompleteness of the system of root vectors of a linear pencil

Mathematics Subject Classification ID

Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) Spectrum, resolvent (47A10) Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

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