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Classification of eigentuples for uniformly elliptic multiparameter problems - MaRDI portal

Classification of eigentuples for uniformly elliptic multiparameter problems (Q1124091)

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scientific article; zbMATH DE number 4111364
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Classification of eigentuples for uniformly elliptic multiparameter problems
scientific article; zbMATH DE number 4111364

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    Classification of eigentuples for uniformly elliptic multiparameter problems (English)
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    1989
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    self-adjoint operators in Hilbert spaces
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    uniform ellipticity
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    uniform left definiteness
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    algebraic multiplicities of eigenvalues
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    transitions between real and non-real eigenvalues
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    bounds for the numbers of eigenvalues
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