A necessary condition for convergence of interpolating parabolic and cubic splines |
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Authors: | N L Zmatrakov |
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Institution: | (1) Institute of Mathematics and Mechanics, UNTs, Academy of Sciences of the USSR, USSR |
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Abstract: | Let the sequence of nets n be such that
, where hi
(n) are the lengths of the segments of a net. The bound
is necessary in order that interpolating parabolic and cubic splines converge for any function in C ( = 0) or C (0 < < 1), where C is the class of functions satisfying a Lipschitz condition of order . It is also shown that this bound cannot essentially be weakened.Translated from Matematicheskie Zametki, Vol. 19, No. 2, pp. 165–178, February, 1976.The author thanks Yu. N. Subbotin for a useful discussion of the results obtained. |
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