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Discrete best \(L_ 1\), approximation in the gauges sense. (English) Zbl 0694.41032

A discrete version is developed of the theory [A. Pinkus and O. Shisha, J. Approximation Theory 35, 148-168 (1982)] of best approximation in the “gauges” sense.
Reviewer: G.Anastassian

MSC:

41A50 Best approximation, Chebyshev systems

Keywords:

gauges

Citations:

Zbl 0532.41032
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References:

[1] DOI: 10.1016/0021-9045(82)90033-8 · Zbl 0532.41032 · doi:10.1016/0021-9045(82)90033-8
[2] Ma Z., J. Approx. Theory 35 (1982)
[3] Natanson I. P., Constructive Function Theory 1 (1964) · Zbl 0133.31101
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