On Quasi-Chebyshevity Subsets of Unital Banach Algebras

DOI10.4208/ATA.2018.V34.N1.7zbMath1424.41050OpenAlexW2947327527WikidataQ127821624 ScholiaQ127821624MaRDI QIDQ5383593

Fatemeh Soleimany, Mahdi Iranmanesh

Publication date: 21 June 2019

Published in: Analysis in Theory and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4208/ata.2018.v34.n1.7

zbMATH Keywords

best approximation$C^*$-algebrasHilbert $C^*$-modulespseudo-Chebyshevquasi-Chebyshev sets

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) General theory of (C^*)-algebras (46L05) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

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