Spectra of elements in the range of strongly continuous unitary representations of Lie groups (Q438604)

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scientific article; zbMATH DE number 6062077
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Spectra of elements in the range of strongly continuous unitary representations of Lie groups
scientific article; zbMATH DE number 6062077

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    Spectra of elements in the range of strongly continuous unitary representations of Lie groups (English)
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    31 July 2012
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    Consider a strongly continuous unitary representation of a Lie group. The following dichotomy is proved in this paper: The representation is norm continuous, or on an open neighbourhood of the unit there is a residual set of elements whose range admits the entire unit circle as spectrum. The above open neighbourhood is the whole group in the case of a weakly exponential Lie group.
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    spectra
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    linear operators
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    strongly continuous linear representation
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    Lie groups
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