Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



A short proof of an inequality of Littlewood and Paley

Author: Miroslav Pavlovic
Journal: Proc. Amer. Math. Soc. 134 (2006), 3625-3627
MSC (2000): Primary 46E15
Published electronically: June 15, 2006
MathSciNet review: 2240675
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Abstract: A very short proof is given of the inequality

$\displaystyle \int_{\vert z\vert<1}\vert\nabla u(z)\vert^p (1-\vert z\vert)^{p-... ...rac 1{2\pi}\int_0^{2\pi} \vert f(e^{it})\vert^p\,dt -\vert u(0)\vert^p\right), $

where $ p>2,$ and $ u$ is the Poisson integral of $ f\in L^p(\partial \mathbb{D}),$ $ \mathbb{D}=\{z: \vert z\vert<1\}.$

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Additional Information

Miroslav Pavlovic
Affiliation: Matematički Fakultet, Univerzitet u Beogradu, Studentski trg 16, 11000 Belgrade, Serbia, Yugoslavia

Received by editor(s): May 18, 2005
Received by editor(s) in revised form: July 11, 2005
Published electronically: June 15, 2006
Additional Notes: The author was supported by MNZŽS Grant, No. ON144010, Serbia
Communicated by: Michael T. Lacey
Article copyright: © Copyright 2006 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.