A characterization of weighted approximations by the Post-Widder and the Gamma operators

DOI10.1016/j.jat.2006.09.007zbMath1113.41028OpenAlexW4206328609MaRDI QIDQ885266

Borislav R. Draganov, Kamen G. Ivanov

Publication date: 8 June 2007

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jat.2006.09.007

zbMATH Keywords

rate of convergence\(K\)-functionalmodulus of smoothnessPost-Widder operatorGamma operator

Mathematics Subject Classification ID

Approximation by operators (in particular, by integral operators) (41A35)

Related Items

Some Results on Post-Widder Operators Preserving Test Function x^r, A characterization of weighted approximations by the Post-Widder and the gamma operators. II, The rate of convergence of a generalization of Post-Widder operators and Rathore operators, Unnamed Item, Approximation properties of \(\lambda\)-Gamma operators based on \(q\)-integers

Cites Work

• A strong converse inequality for left gamma quasi-interpolants in \(L_p\) spaces
• K-functionals and weighted moduli of smoothness
• A new characterization of weighted Peetre \(K\)-functionals
• Approximationseigenschaften der Gammaoperatoren
• Strong converse inequality for left gamma quasi-interpolants
• Strong converse inequalities
• Lower estimates for centered Bernstein-type operators
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