Best one-sided \(L^1\)-approximation by harmonic functions

DOI10.1007/s002290050060zbMath0904.31002OpenAlexW2058963870MaRDI QIDQ1392979

Werner Haussmann, David H. Armitage, Stephen J. Gardiner, Lothar Rogge

Publication date: 14 January 1999

Published in: Manuscripta Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s002290050060

zbMATH Keywords

harmonic functionsone-sided approximationbest \(L^1\)-approximation

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Harmonic, subharmonic, superharmonic functions in higher dimensions (31B05) Multidimensional problems (41A63) Approximation with constraints (41A29) Approximation by other special function classes (41A30)

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