No Jackson-type estimates for piecewise \(q\)-monotone, \(q \geq 3,\) trigonometric approximation

DOI10.1007/S11253-022-02099-XOpenAlexW4309681996MaRDI QIDQ2107798

O. V. Motorna, I. A. Shevchuk, Dany Leviatan

Publication date: 5 December 2022

Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2004.03724

Mathematics Subject Classification ID

Harmonic analysis in one variable (42Axx) Approximations and expansions (41Axx) Approximations and expansions (41-XX)

Related Items (1)

Coconvex approximation of periodic functions

Cites Work

• On the Bernstein conjecture in approximation theory
• Comonotone Jackson's inequality
• Degree of approximation by monotone polynomials. I
• Comonotone approximation of twice differentiable periodic functions
• Coconvex approximation of periodic functions
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