scientific article; zbMATH DE number 3798508

Iosif Semenovich Iokhvidov, M. G. Krejn, Heinz K. Langer

Publication date: 1982

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

indefinite inner product invariant subspaces dissipative operators contractive operators angle operators extension theory of Hermitian operators non-decreasing operators plus- operators representation of groups in a space with indefinite metric Riesz projections for a uniformly expansive operator spectral decomposition for selfadjoint and unitary operators

Mathematics Subject Classification ID

Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Research exposition (monographs, survey articles) pertaining to operator theory (47-02) Linear operators on spaces with an indefinite metric (47B50)

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