| 二元Jackson型算子的最佳逼近常数 |
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| 引用本文： | 胡晓英,盛宝怀. 二元Jackson型算子的最佳逼近常数[J]. 绍兴文理学院学报, 2005, 0(3) |
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| 作者姓名： | 胡晓英 盛宝怀 |
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| 作者单位： | 绍兴文理学院数学系 浙江绍兴312000(胡晓英)，绍兴文理学院数学系 浙江绍兴312000(盛宝怀) |
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| 摘 要： | 研究了二元Jackson多项式对周期函数的逼近阶估计.分别给出了以一阶和二阶光滑模刻画的Jackson型估计式,并分别给出了逼近的最佳常数.
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| 关 键 词： | Jackson型算子 连续模 逼近常数 |
The Best Approximation Constant for the Bivariate Jackson Operators |
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| Hu Xiaoying Sheng Baohuai. The Best Approximation Constant for the Bivariate Jackson Operators[J]. Journal of Shaoxing College of Arts and Sciences, 2005, 0(3) |
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| Authors: | Hu Xiaoying Sheng Baohuai |
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| Abstract: | The estimate of approximation by bivariate Jackson polynomials is investigated.The Jackson estimate is established respectively by the modulus of smoothness of first and second order.Finally,the best approximation constant is given respectively. |
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| Keywords: | Jackson operator modulus of continuity approximation constant |
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