scientific article; zbMATH DE number 3806319

Publication date: 1982

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resolvent critical points spectral function non-negative operators definitizable operators in Krein spaces maximal nonnegative invariant subspaces spectral properties of selfadjoint operators in Krein spaces

Mathematics Subject Classification ID

Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Spectrum, resolvent (47A10) Invariant subspaces of linear operators (47A15) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Spectral sets of linear operators (47A25) Linear operators on spaces with an indefinite metric (47B50)

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