Polynomial Approximation and $ω^r_ϕ(f,t)$ Twenty Years Later

Z. Ditzian

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arXiv · 0709.2729

Polynomial Approximation and $ω^r_ϕ(f,t)$ Twenty Years Later

Z. Ditzian

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Abstract

About twenty years ago the measure of smoothness $ω^r_ϕ(f,t)$ was introduced and related to the rate of polynomial approximation. In this article we survey developments about this and related concepts since that time.

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Z. Ditzian. 2007-09-17. Polynomial Approximation and $ω^r_ϕ(f,t)$ Twenty Years Later. https://arxiv.org/abs/0709.2729

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