On the continuity of the sharp constant in the Jackson-Stechkin inequality in the space \(L^2\)

DOI10.1134/S0001434613010021zbMath1271.42001MaRDI QIDQ1947763

V. S. Balaganskij

Publication date: 26 April 2013

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

zbMATH Keywords

approximationextremal function

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50)

Cites Work

• The optimal set of the modulus of continuity in the sharp Jackson inequality in the space \(L_ 2\).
• On Jackson's inequality with a generalized modulus of continuity.
• Jackson inequalities on sphere in \(L_ 2\)
• On Jackson's inequality for a generalized modulus of continuity in $ L_2$
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