The invariant subspace problem (Q5896470)

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scientific article; zbMATH DE number 3874030
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The invariant subspace problem
scientific article; zbMATH DE number 3874030

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    The invariant subspace problem (English)
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    1983
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    The conjectured characterisation of extreme points needed for the justification of the formal proof given by the author and \textit{J. Rovnyak} in Bull. Am. Math. Soc. 70, 718-721 (1964; Zbl 0171.349) and 71, 396 (1965), is shown to be false.
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    invariant subspaces
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    square summable power series
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    extreme points
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