期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
An Equivalent Relation Between the Derivatives of Bernstein Operators and the Modulous of Smoothness
摘要/Abstract
摘要：
利用Ditzian模k2hλ(f,t)（0≤λ≤1)研究了Bernstein算子导数与它所逼近函数光滑性之间的关系,得到了Bernstein算子导数与Ditzian模的等价定理.
Abstract：
Use the Ditzian modulous of smoothness k2hλ( f,t) to study the relation of the derivatives between Bernstein operators and the smoothness of the function it approximate, and obtain the equiva-lent theorem between the derivatives of Bernstein operators and the Ditzian modulous of smoothness.
关键词
Key words：
modulus of smoothness
;
derivatives
;
equivalent theorem