Pointwise analog of the jackson approximation theorem
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摘要
The pointwise version of the Jackson theorem on the best approximation by trigonometric polynomials is proved. Some application of the result is also presented.
论文关键词：Approximation,Best approximation
论文评审过程：Available online 20 July 2011.
论文官网地址：https://doi.org/10.1016/j.amc.2011.06.036
