Composition operators on vector-valued Hardy spaces.
S. D. Sharma, U. Bhanu (1999)
Extracta Mathematicae
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S. D. Sharma, U. Bhanu (1999)
Extracta Mathematicae
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Yang, Bicheng, Debnath, Lokenath (1998)
International Journal of Mathematics and Mathematical Sciences
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Elena Lomakina, Vladimir Stepanov (1998)
Publicacions Matemàtiques
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Characterization of the mapping properties such as boundedness, compactness, measure of non-compactness and estimates of the approximation numbers of Hardy-type integral operators in Banach function spaces are given.
Alejandro García del Amo (1993)
Collectanea Mathematica
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Eugenio Hernández (1989)
Studia Mathematica
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I. Chalendar, J. Partington (1999)
Studia Mathematica
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We derive various approximation results in the theory of Hardy spaces on circular domains G. Two applications are given, one to operators which admit a nice representation of , and the other to extremal problems with links to the theory of differential equations.
E. Sawyer (1985)
Studia Mathematica
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Appel, Matthew J., Bourdon, Paul S., Thrall, John J. (1996)
Experimental Mathematics
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C.J. NEUGEBAUER (1992)
Forum mathematicum
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E. Sawyer (1990)
Studia Mathematica
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Ronald R. Coifman, Loukas Grafakos (1992)
Revista Matemática Iberoamericana
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In this article we study bilinear operators given by inner products of finite vectors of Calderón-Zygmund operators. We find that necessary and sufficient condition for these operators to map products of Hardy spaces into Hardy spaces is to have a certain number of moments vanishing and under this assumption we prove a Hölder-type inequality in the H space context.