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Weak martingale Hardy-type spaces associated with quasi-Banach function lattice

Weak martingale Hardy-type spaces associated with quasi-Banach function lattice AbstractIn this paper, the authors introduce weak martingale Hardy-type spaces associated with a quasi-Banach function lattice. The authors then establish the atomic characterizations of these weak martingale Hardy-type spaces. As applications, the authors give the sufficient conditions for the boundedness of σ-sublinear operators from weak martingale Hardy-type spaces to a quasi-Banach function lattice. Furthermore, the authors clarify the relation among different weak martingale Hardy-type spaces in the framework of a rearrangement-invariant quasi-Banach function space. Finally, the authors apply these results to the weighted Lorentz space and the generalized grand Lebesgue space. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Forum Mathematicum de Gruyter

Weak martingale Hardy-type spaces associated with quasi-Banach function lattice

Forum Mathematicum , Volume 34 (2): 17 – Mar 1, 2022

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References (39)

Publisher
de Gruyter
Copyright
© 2022 Walter de Gruyter GmbH, Berlin/Boston
ISSN
0933-7741
eISSN
1435-5337
DOI
10.1515/forum-2021-0270
Publisher site
See Article on Publisher Site

Abstract

AbstractIn this paper, the authors introduce weak martingale Hardy-type spaces associated with a quasi-Banach function lattice. The authors then establish the atomic characterizations of these weak martingale Hardy-type spaces. As applications, the authors give the sufficient conditions for the boundedness of σ-sublinear operators from weak martingale Hardy-type spaces to a quasi-Banach function lattice. Furthermore, the authors clarify the relation among different weak martingale Hardy-type spaces in the framework of a rearrangement-invariant quasi-Banach function space. Finally, the authors apply these results to the weighted Lorentz space and the generalized grand Lebesgue space.

Journal

Forum Mathematicumde Gruyter

Published: Mar 1, 2022

Keywords: Quasi-Banach function lattice; weak martingale Hardy-type spaces; atomic characterization; martingale inequality; rearrangement-invariant; 60G42; 60G46; 42B35

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