Best one-sided approximation of some classes of smooth functions on the whole real axis by cardinal splines of higher order |
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Authors: | Sun Yongsheng Liu Yongping |
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Affiliation: | 1. Department of Mathematics, Beijing Normal University, 100875, Beijing, PRC
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Abstract: | The objective of this paper is to study the quantity . In this paper we establish a duality theorem for the quantity for m≥r. By virtue of the duality theroem we obtain the exact estimation for for all m≥r. |
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Keywords: | |
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