| Kantorovich算子的二阶导数逼近 |
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| 引用本文： | 徐淳宁. Kantorovich算子的二阶导数逼近[J]. 宁夏大学学报(自然科学版), 1993, 14(4): 25-29 |
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| 作者姓名： | 徐淳宁 |
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| 作者单位： | 长春邮电学院 |
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| 摘 要： | 本文讨论了Kantorovich算子的二阶导数K_n″(f,x)对有界变差函数f″(x)的逼近,给出了点态收敛阶并证明了所得到的收敛阶是不能改进的。
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| 关 键 词： | 导数 逼近 K算子 有界变差函数 |
On the Approximation of Second Derivatves by Kantorovich Operators |
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| Xu Chunning. On the Approximation of Second Derivatves by Kantorovich Operators[J]. Journal of Ningxia University(Natural Science Edition), 1993, 14(4): 25-29 |
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| Authors: | Xu Chunning |
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| Affiliation: | Changchun Post and Telecommunications Institute |
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| Abstract: | In this paper, the approximation for the bounded variation function by the second derivatives of Kantorovich operators was discussed, and the degree of pointwise ConvergenCe is given, but the results can't be improved. |
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| Keywords: | derivative approximation Kantorovich operator. |
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