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Unattained boundary points of the numerical range of Hilbert space operators - MaRDI portal

Unattained boundary points of the numerical range of Hilbert space operators (Q3218649)

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Unattained boundary points of the numerical range of Hilbert space operators
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    Unattained boundary points of the numerical range of Hilbert space operators (English)
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    1985
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    numerical range
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    Toeplitz-Hausdorff theorem
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    unattained boundary points
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