Numerical range of operator pencils and Keldysh multiple completeness

DOI10.1007/BF01078171zbMath0349.47005OpenAlexW1968373579MaRDI QIDQ1234878

G. A. Isaev

Publication date: 1975

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

Full work available at URL: https://doi.org/10.1007/bf01078171

Mathematics Subject Classification ID

Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Spectrum, resolvent (47A10) Linear spaces of operators (47L05) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70) Linear operators in algebras (47C05)

Related Items (4)

Spaces of Riemannian metrics ⋮ Geometry of homogeneous Riemannian manifolds ⋮ On the connectedness of numerical range of matrix polynomials ⋮ A connection between numerical ranges of selfadjoint matrix polynomials

Cites Work

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