A boundedness criterion for generalized Calderón-Zygmund operators
type: Item
instance of: scholarly article
title: A boundedness criterion for generalized Calderón-Zygmund operators
zbMATH Open document ID: 0567.47025
DOI: 10.2307/2006946
author: Jean-Lin Journé
author: Guy David
published in: Annals of Mathematics. Second Series
publication date: 1984-01-01T00:00:00Z
review text: In 1965, A. P. Calderón showed the \(L^ 2\)-boundedness of the socalled first Calderón commutator. Many other nonconvolution operators in analysis, such as certain classes of pseudo-differential operators and the Cauchy integral operator on a curve, are also associated with kernels satisfying size and smoothness properties which imply together with the \(L^ 2\)-boundedness the \(L^ p-(p>1)\) boundedness of the operators in question. By these facts the aim of the paper is motivated: to give necessary and sufficient conditions for certain generalized Calderón- Zygmund operators to be bounded on \(L^ 2\). In the main theorem it's about a continuous operator T from the class \({\mathcal S}(R^ n)\) of Schwartz functions to the dual class \({\mathcal S}'(R^ n)\), and the condition in order that T could be extended from \(L^ 2(R^ n)\) to itself is essentially that the images of the function 1 under the actions of the operator and its adjoint both lie in BMO, i.e. in the dual of \(H^ 1.\) There are still some applications on the functional calculus connected with a second order partial differential operator, as well as on a conjecture of \textit{T. Kato}, contained in a book of him [Perturbation theory for linear operators (1966; Zbl 0148.126)]. Cf. also a recent monography of the second author: Calderón-Zygmund operators, pseudo- differential operators and the Cauchy integral of Calderón, Lecture Notes Math. 994 (1983; Zbl 0508.42021).
Mathematics Subject Classification ID: 47B38
Mathematics Subject Classification ID: 47A60
Mathematics Subject Classification ID: 47F05
Mathematics Subject Classification ID: 42B20
Mathematics Subject Classification ID: 47B47
Mathematics Subject Classification ID: 47Gxx
zbMATH DE Number: 3905275
zbMATH Keywords: Calderón commutator
zbMATH Keywords: pseudo-differential operators
zbMATH Keywords: generalized Calderón-Zygmund operators
zbMATH Keywords: functional calculus
zbMATH Keywords: second order partial differential operator
reviewed by: Miklós Mikolás
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.2307/2006946
OpenAlex ID: W2092891252
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description: scientific article; zbMATH DE number 3905275