K-FUNCTIONAL

作品数:24被引量:12H指数:2
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相关领域:理学更多>>
相关作者:刘喜武孙德华刘丽霞吴嘎日迪刘三阳更多>>
相关机构:河北经贸大学西安电子科技大学内蒙古师范大学河北师范大学更多>>
相关期刊:《Science China Mathematics》《高等学校计算数学学报》《Analysis in Theory and Applications》《Open Journal of Applied Sciences》更多>>
相关基金:国家自然科学基金福建省自然科学基金内蒙古自治区自然科学基金更多>>
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Inverse Theorem of Approximation in L_p for the Stancu Integral-type Operators on a Simplex
《Chinese Quarterly Journal of Mathematics》2006年第1期4-9,共6页ZHANG Chun-gou 
Supported by the NNSF of China(10371080);Supported by the Educational Committee Foundation of Beijing(01KJ-101)
In this paper, the integral-type Stancu operators on a simplex is considered and its inverse theorem of approximation in Lp(1≤ p 〈+∞)has been obtained.
关键词:SIMPLEX K-FUNCTIONAL the integral-type Stancu operators inverse theorem of approximation 
K-Functional, Weighted Moduli of Smoothness, and Best Weighted Polynomial Approximation on a Simplex
《Acta Mathematica Sinica,English Series》1999年第3期395-403,405-406,共11页Song Li Department of Mathematics, Zhejiang University, Hangzhou 310027, P. R. China 
An inverse theorem for the best weighted polynomial approximation of a function in Lwαp(S) is established. We also investigate Besov spaces generated by Freud weight and their conne...
关键词:Weighted moduli of smoothness K-FUNCTIONAL Best weighted polynomial approximation SIMPLEX 
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