Bernstein-Sikkema算子逼近

Approximation of Bernstein Sikkema Operators

中文关键词:  Bernstein－Sikkema算子  光滑模  逼近

英文关键词:Bernstein Sikkema operators  modulus of smoothness  approximation.

中文摘要:

      研究Ｂｅｒｎｓｔｅｉｎ－Ｓｉｋｋｅｍａ算子的逼近问题，得到强型正定理和弱型逆定理，改进了文献［１］的结果

英文摘要:

      The problems of approximation for Bernstein Sikkema operators are studied, and the approximation strong type direct theorem and weak type inverse theorem are obtained. The results of the reference [1] are improved.