scientific article; zbMATH DE number 3642073
zbMath0413.46003MaRDI QIDQ4201270
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Publication date: 1979
Full work available at URL: http://www.numdam.org/item?id=SAF_1978-1979____A13_0
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Hadamard matricesapproximation propertyfinite rank operatorsregular partitionscombinatorial lemmaspace of all bounded operators on Hilbert spaceunconditional systems
Abstract operator algebras on Hilbert spaces (47L30) General theory of (C^*)-algebras (46L05) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Summability and bases; functional analytic aspects of frames in Banach and Hilbert spaces (46B15) Spaces of linear operators; topological tensor products; approximation properties (46A32) Linear spaces of operators (47L05) Inner product spaces and their generalizations, Hilbert spaces (46C99) Tensor products in functional analysis (46M05)
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