刘喜武,郭顺生,刘丽霞.Stancu-Sikkema算子的点态估计(英文)[J].数学研究及应用,2003,23(1):59~64 |
Stancu-Sikkema算子的点态估计(英文) |
The Pointwise Estimate for Stancu-Sikkema Operators |
投稿时间:2000-01-18 |
DOI:10.3770/j.issn:1000-341X.2003.01.010 |
中文关键词: |
英文关键词:Stancu-Sikkema operators modulus of smoothness K-functional. |
基金项目: |
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中文摘要: |
本文构造了Stancu—Sikkema算子,并利用点态光滑模研究了此算子的点态逼近正逆定理. |
英文摘要: |
In this paper, we construct Stancu-Sikkema operators and obtain the point-wise direct and converse theorems in terms of pointwise modulus of smoothness. Some results about Bernstein-Sikkema operators and Stancu operators are extended. |
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