Spectrum of nonpositive contractions on C(X) (Q1066440)

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scientific article; zbMATH DE number 3925611
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Spectrum of nonpositive contractions on C(X)
scientific article; zbMATH DE number 3925611

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    Spectrum of nonpositive contractions on C(X) (English)
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    1985
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    Known results in the spectral theory of Markov operators are shown to have analogues which are valid for general contractions. For instance we discuss the group structure of the unimodular eigenfunctions, and the representation of an irreducible operator as a rotation of a compact group, followed by a multiplication. The main tool is a certain Radon- Nikodym derivative which enables us positivity back into the picture.
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    invariant measure
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    spectral theory of Markov operators
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    contractions
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    group structure of the unimodular eigenfunctions
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    representation of an irreducible operator as a rotation of a
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    compact group, followed by a multiplication
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    Radon-Nikodym derivative
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    representation of an irreducible operator as a rotation of a compact group, followed by a multiplication
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