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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)

 

 

The degree of approximation by Chebyshevian splines


Authors: R. DeVore and F. Richards
Journal: Trans. Amer. Math. Soc. 181 (1973), 401-418
MSC: Primary 41A15
MathSciNet review: 0336160
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Abstract: This paper studies the connections between the smoothness of a function and its degree of approximation by Chebyshevian splines. This is accomplished by proving companion direct and inverse theorems which give a characterization of smoothness in terms of degree of approximation. A determination of the saturation properties is included.


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DOI: https://doi.org/10.1090/S0002-9947-1973-0336160-9
Keywords: Splines, degree of approximation, Chebyshev system, saturation, inverse theorems
Article copyright: © Copyright 1973 American Mathematical Society