On best simultaneous approximation in Banach spaces. (English) Zbl 0489.41033


41A65 Abstract approximation theory (approximation in normed linear spaces and other abstract spaces)
41A50 Best approximation, Chebyshev systems
41A28 Simultaneous approximation


Zbl 0435.41016
Full Text: DOI


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[4] Dunham, C. B., Simultaneous Chebyshev approximation of functions on an interval, (Proc. Amer. Math. Soc., 18 (1967)), 472-477 · Zbl 0154.05904
[5] Holland, A. S.; Sahney, B. N.; Tzimbalario, J., On best simultaneous approximation, J. Indian Math. Soc., 40, 69-73 (1976) · Zbl 0435.41016
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