Best Trigonometric and Bilinear Approximations for the Classes of (ψ, β)-Differentiable Periodic Functions

被引：0

作者：

V. V. Shkapa

机构：

[1] Institute of Mathematics,

[2] Ukrainian National Academy of Sciences,undefined

来源：

Ukrainian Mathematical Journal | 2016年 / 68卷

关键词：

D O I：

暂无

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学科分类号：

摘要：

We establish exact-order estimates for the best m-term trigonometric approximations of the classes Lβ,1ψin the space Lq, 2 < q < ∞. We also determine the exact orders of the best bilinear approximations for the classes of functions of two variables generated by functions of a single variable from the class Lβ,pψ by shifts of the argument in the space Lq1,q2, 1 ≤ q1, q2≤ ∞.

引用

页码：433 / 447

页数：14

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