On the degree of complex rational approximation to real functions

DOI10.1007/BF01893427zbMath0592.41018MaRDI QIDQ1075542

A. L. Levin

Publication date: 1986

Published in: Constructive Approximation (Search for Journal in Brave)

zbMATH Keywords

errors in best approximation

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation in the complex plane (30E10) Approximation by rational functions (41A20) Best constants in approximation theory (41A44)

Cites Work

• Unnamed Item
• A note on real vs. complex best Chebyshev approximation on an interval
• Best uniform approximation by linear fractional transformations
• Padé approximate as limits of rational functions of best approximation, real domain
• Nonuniqueness of best complex rational approximations to real functions on real intervals
• Real VS. Complex Rational Chebyshev Approximation on an Interval
• A note on a problem of Saff and Varga concerning the degree of complex rational approximation to real valued functions

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