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| ON LAGRANGE INTERPOLATION FOR |X|~α (0 < α < 1) | |
| 基金项目： | Supported by the NSFC, 10601065 |
| 摘 要： | We study the optimal order of approximation for |x|α (0 < α < 1) by Lagrange interpolation polynomials based on Chebyshev nodes of the first kind. It is proved that the Jackson order of approximation is attained. |
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