| 二元Marcinkiewicz型和的强性逼近 |
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| 引用本文： | 王小刚,李学文.二元Marcinkiewicz型和的强性逼近[J].西南大学学报,2009,31(6). |
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| 作者姓名： | 王小刚 李学文 |
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| 作者单位： | 北方民族大学,基础部,银川,750021 |
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| 基金项目： | 宁夏高等学校科研基金资助项目，北方民族大学校级科研项目 |
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| 摘 要： | 主要研究了由三角插值多项式构造的周期为2π的二元连续函数的Marcinkiewicz型和的(p,q)阶r次强性逼近问题,得到了强性逼近的正定理.Abstract：The problem considered in this paper is a kind of bivariate continuous function with a period of 2π. The estimate of Marcinkiewicz-type sum was (p, q)-th strongly approximation for every positive real number, therefore the positive theorem was obtainecl.
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| 关 键 词： | Marcinkiewicz型和 最佳逼近 强性逼近 |
On a Strong Approximation of Bivariate Marcinkiewicz-Type Sums |
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| WANG Xiao-gang,LI Xue-wen.On a Strong Approximation of Bivariate Marcinkiewicz-Type Sums[J].Journal of Southwest Agricultural University,2009,31(6). |
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| Authors: | WANG Xiao-gang LI Xue-wen |
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