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Open AccessJournal ArticleDOI

On the Hardy-Littlewood maximal function for the cube

Jean Bourgain
- 01 Oct 2014 - 
- Vol. 203, Iss: 1, pp 275-293
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TLDR
In this article, it was shown that the Hardy-Littlewood maximal function associated to the cube in ℝ n ≥ 1 obeys dimensional free bounds in L p ≥ 1 for p > 1.
Abstract
It is shown that the Hardy-Littlewood maximal function associated to the cube in ℝ n obeys dimensional free bounds in L p for p > 1. Earlier work only covered the range p > $$\frac{3}{2}$$ .

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Journal ArticleDOI

A bootstrapping approach to jump inequalities and their applications

TL;DR: In this paper, an abstract and general approach to jump inequalities in harmonic analysis is presented, which is applied to the dimension-free results recently obtained by the first two authors in collaboration with Bourgain, and also to operators of Radon type treated by Jones, Seeger, and Wright.
Journal ArticleDOI

Dimension free bounds for the Hardy–Littlewood maximal operator associated to convex sets

TL;DR: A survey of maximal functions inequalities for convex sets in high dimensional linear spaces can be found in this paper, where Bourgain, Carbery and Muller present several results along this line, and a new one due to Bourgain (2014).
Journal ArticleDOI

On dimension-free variational inequalities for averaging operators in $\mathbb R^d$

TL;DR: In this article, the dimension-free L p ≥ 2 inequalities for r-variations of the Hardy-Littlewood averaging operator defined over symmetric convex bodies were studied.
Journal ArticleDOI

Dimension-Free Estimates for Discrete Hardy-Littlewood Averaging Operators Over the Cubes in ℤd

TL;DR: In this article, dimension-free bounds for discrete Hardy-Littlewood averaging operators over the cubes in a convex body were provided in maximal and $r$-variational inequalities.
Posted Content

Pointwise convergence of noncommutative fourier series

TL;DR: In this paper, the pointwise convergence of Fourier series for non-abelian compact groups, group von Neumann algebras and quantum groups is studied and a non-commutative bootstrap method is developed.
References
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Journal ArticleDOI

Holomorphic semi-groups and the geometry of Banach spaces

TL;DR: In this article, it was shown that all uniformly convex spaces have k-convexity and all uniformly complemented 1(n)7's, if and only if X does not contain l(n)'s uniformly.
Journal ArticleDOI

The development of square functions in the work of A. Zygmund

TL;DR: In fact, the more recent applications of these ideas, described at the end of this essay, can be seen as confirmation of the significance Zygmund always attached to square functions.
Book ChapterDOI

Radial Fourier Multipliers and Associated Maximal Functions

TL;DR: In this paper, the authors show how a certain square function may be used to obtain general multiplier and maximal multiplier theorems for radial Fourier multipliers of R 2 that are not smooth away from a one dimensional singularity.
Journal ArticleDOI

An almost-orthogonality principle with applications to maximal functions associated to convex bodies

TL;DR: In this paper, it was shown that the L operator norm of M is bounded by an absolute constant independent of the body and the dimension of the operator operator, for p > 3/2 and for all p > 1.