Global symmetric approximation of frames

DOI10.1007/s00041-018-9632-4zbMath1421.42018arXiv1711.08543OpenAlexW2963193608MaRDI QIDQ2003594

Eduardo Chiumiento

Publication date: 9 July 2019

Published in: The Journal of Fourier Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1711.08543

zbMATH Keywords

Hilbert spaceframeBanach-Lie grouppartial isometryHilbert-Schmidt operatorLöwdin orthogonalizationsymmetric approximationLidskii-Mirsky-Wielandt theoremindex of a pair of projections

Mathematics Subject Classification ID

Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) (46C05) Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) General harmonic expansions, frames (42C15) Nontrigonometric harmonic analysis (42C99)

Related Items (2)

Approximation of the polar factor of an operator acting on a Hilbert space ⋮ On a conjecture by Mbekhta about best approximation by polar factors

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