Error estimates for approximation of translation invariant operators
David Shreve (1975)
Studia Mathematica
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Displaying similar documents to “Approximation of commutators of singular integrals”
Error estimates for approximation of translation invariant operators
Global approximation by modified Baskakov type operators.
Vijay Gupta (1995)
Publicacions Matemàtiques
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In the present paper, we prove a global direct theorem for the modified Baskakov type operators in terms of so called Ditzian-Totik modulus of smoothness.
Error estimates and the Voronovskaja theorem for modified Szász-Mirakyan operators
Zbigniew Walczak (2005)
Mathematica Slovaca
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Multilinear singular integrals involving a derivative of fractional order
Margaret Murray (1987)
Studia Mathematica
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A variant sharp estimate for multilinear singular integral operators
Guoen Hu, Dachun Yang (2000)
Studia Mathematica
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We establish a variant sharp estimate for multilinear singular integral operators. As applications, we obtain the weighted norm inequalities on general weights and certain type estimates for these multilinear operators.
Weighted two-parameter Bergman space inequalities.
J. Michael Wilson (2003)
Publicacions Matemàtiques
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The Compact Approximation Property does not imply the Approximation Property
George Willis (1992)
Studia Mathematica
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It is shown how to construct, given a Banach space which does not have the approximation property, another Banach space which does not have the approximation property but which does have the compact approximation property.
On a singular integral
Calixto Calderón (1979)
Studia Mathematica
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Hardy space estimates for multilinear operators (II).
Loukas Grafakos (1992)
Revista Matemática Iberoamericana
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We continue the study of multilinear operators given by products of finite vectors of Calderón-Zygmund operators. We determine the set of all r ≤ 1 for which these operators map products of Lebesgue spaces L(R) into the Hardy spaces H(R). At the endpoint case r = n/(n + m + 1), where m is the highest vanishing moment of the multilinear operator, we prove a weak type result.