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多元Gauss-Weierstrass算子的L_p-逼近
L_p-approximation by multidimensional Gauss-Weierstrass operators
【摘要】 本文借助于K-度函和光滑模的等价关系,给出了多元Gauss-Weierstrss算子的L-逼近的特征定理.
【Abstract】 In this paper,the characterization of multimensional Gauss-Weierstrass operators Wn,m(F;x,y)are considered.for f ∈Lp(R2) 1<p≤∞,O<α<1,then the following statements are equivalent each to another:(i) K1.2(F,t)= O(t°);
【关键词】 多元Gauss-Weierstrass算子;
K-泛函;
光滑模;
特征刻划;
【Key words】 ultidimensional Gauss-Weierstrass operators; K-functional; moduli of smoothness; characterization;
【Key words】 ultidimensional Gauss-Weierstrass operators; K-functional; moduli of smoothness; characterization;
- 【文献出处】 浙江大学学报(自然科学版) ,Journal of Zhejiang University(Natural Science) , 编辑部邮箱 ,1995年01期
- 【分类号】O177.6
- 【被引频次】6
- 【下载频次】29