THE GLOBAL APPROXIMATION BY LEFT-BERNSTEIN-DURRMEYER QUASI-INTERPOLANTS IN Lp[0, 1] |
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作者姓名: | DuanLiqin LiCuixiang |
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作者单位: | HebeiNormalUniversity,China |
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摘 要: | In this paper,we will use the 2r-th Ditzian-Totik modulus of smoothness wp^2r(f,t)p to discuss the direct and inverse theorem of approximation by Left-Bernstein-Durrmeyer quasi-interpolants Mn^2r-1]f for functions of the space Lp0,1](1≤p≤ ∞)。
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关 键 词: | 直接递归 准插入法 光滑系数 最优化逼近 线性规划 |
收稿时间: | 14 November 2003 |
修稿时间: | 1 July 2004 |
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