Endpoint estimates for Rubio de Francia operators
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- by María J. Carro and Carlos Domingo-Salazar PDF
- Trans. Amer. Math. Soc. 371 (2019), 1621-1648 Request permission
Abstract:
The extrapolation theory of Rubio de Francia provides a tool to obtain $A_p$ weighted estimates on $L^p$ spaces for every $1<p<\infty$, starting from information at a single $1<p_0<\infty$. However, the endpoint case $p=1$ cannot be reached in general. Classical extrapolation arguments in the sense of Yano can be added to this setting to deduce results close to $L^1$ without weights. In this paper, we present different approaches that produce endpoint estimates with respect to the whole $A_1$ class. We give applications to the Carleson operator and maximally modulated singular integrals among others.References
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Additional Information
- María J. Carro
- Affiliation: Departament de Matemàtiques i Informàtica, Universitat de Barcelona, 08007 Barcelona, Spain
- Email: carro@ub.edu
- Carlos Domingo-Salazar
- Affiliation: Departament de Matemàtiques i Informàtica, Universitat de Barcelona, 08007 Barcelona, Spain
- MR Author ID: 1146740
- Email: domingo@ub.edu
- Received by editor(s): July 13, 2016
- Received by editor(s) in revised form: May 27, 2017, and June 20, 2017
- Published electronically: September 20, 2018
- Additional Notes: The authors were supported by Spanish Government grants MTM2016-75196-P and R&D (MDM-2014-0445), and by the Catalan Autonomous Government grant 2014SGR289
- © Copyright 2018 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 371 (2019), 1621-1648
- MSC (2010): Primary 42B99, 46E30
- DOI: https://doi.org/10.1090/tran/7328
- MathSciNet review: 3894029