On the best coapproximation problem in ℓ1n,

DOI10.1080/03081087.2022.2153101OpenAlexW4311936833MaRDI QIDQ6177666

Souvik Ghosh, Kallol Paul, Shamim Sohel, Debmalya Sain

Publication date: 17 January 2024

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081087.2022.2153101

zbMATH Keywords

dual spaceBirkhoff-James orthogonalityco-Chebyshev subspacebest coapproximationscoproximinal subspace

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

Cites Work

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• Best coapproximation in normed linear spaces
• On best coapproximation in normed linear spaces
• Optimal and one-complemented subspaces
• Orthogonality in linear metric spaces
• On best approximations to compact operators
• Orthogonality and Linear Functionals in Normed Linear Spaces
• On best coapproximations in subspaces of diagonal matrices

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