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Post-Widder算子线性组合加Jacobi权的L_P同时逼近
Weighted simultaneous L_p-approximation with Jacobi weights by linear combinations of Post Widder operators
【摘要】 给出了 Post- Widder算子线性组合加 Jacobi权的 Lp 同时逼近的正、逆定理和逼近阶的特征刻划 .
【Abstract】 In this paper,the weighted simultaneous L p approximation with Jacobi weights by linear combinations of Post Widder operators is considered,the direct and converse and the characterization of approximation are given.
【关键词】 Post-Widder算子;
加权同时逼近;
线性组合;
加权D-T光滑模;
【Key words】 Post Widder operators; weighted simultaneous approximation; linear combination; weighted Ditzian Totik moduli of smoothensp;
【Key words】 Post Widder operators; weighted simultaneous approximation; linear combination; weighted Ditzian Totik moduli of smoothensp;
【基金】 浙江省重点学科基金资助课题
- 【文献出处】 纯粹数学与应用数学 ,Pure and Applied Mathematics , 编辑部邮箱 ,2000年04期
- 【分类号】O174
- 【被引频次】3
- 【下载频次】31