Discontinuity of best harmonic approximants

zbMath0920.41015MaRDI QIDQ1283897

Yifei Pan, David A. Legg

Publication date: 31 May 1999

Published in: Journal of Approximation Theory (Search for Journal in Brave)

zbMATH Keywords

best harmonic approximation

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Harmonic, subharmonic, superharmonic functions in two dimensions (31A05)

Cites Work

• A counterexample in the theory of best approximation
• Best uniform approximation by harmonic functions on subsets of Riemannian manifolds
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