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Bernstein-Kantorovich算子线性组合同时逼近的点态估计
Pointwise Estimate on Simultaneous Approximation by Combinations of Bernstein-Kantorovich Operators
【摘要】 借助于Ditzian-Totik光滑模ωrφλ(f,t)(0≤λ≤1)给出了Bernstein-Kantorovich算子线性组合同时逼近的点态估计.
【Abstract】 The pointwise estimate on simultaneous approximation for the combinations of Bernstein-Kantorovich operators was given by the rth modulus of smoothness ωrφλ(f,t)(0≤λ≤1).
【关键词】 Bernstein-Kantorovich算子;
线性组合;
同时逼近;
光滑模;
【Key words】 Bernstein-Kantorovich operators; linear combinations; simultaneous approximation; moduli of smoothness;
【Key words】 Bernstein-Kantorovich operators; linear combinations; simultaneous approximation; moduli of smoothness;
【基金】 浙江省自然科学基金(102005);浙江省高校重点学科资金(2005)
- 【文献出处】 河北师范大学学报(自然科学版) ,Journal of Hebei Normal University(Natural Science Edition) , 编辑部邮箱 ,2009年02期
- 【分类号】O174.41
- 【被引频次】1
- 【下载频次】39