An Unconventional Orthonormal Basis Provides an Unexpected Counterexample

DOI10.2307/2690507zbMath0820.46008OpenAlexW4241495473WikidataQ124810244 ScholiaQ124810244MaRDI QIDQ4306477

Giuseppe Marino, Paolamaria Pietramala

Publication date: 19 September 1994

Full work available at URL: https://doi.org/10.2307/2690507

zbMATH Keywords

orthonormal basis containing only one discontinuous function

Mathematics Subject Classification ID

Linear operators defined by compactness properties (47B07) Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Summability and bases; functional analytic aspects of frames in Banach and Hilbert spaces (46B15)

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