scientific article; zbMATH DE number 5584742
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Publication:5320374
zbMath1174.46314MaRDI QIDQ5320374
Publication date: 22 July 2009
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Characterizations of Hilbert spaces (46C15) General harmonic expansions, frames (42C15) General theory of linear operators (47A99)
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