Resultats globals: 11 registres trobats en 0.02 segons.
Articles, 11 registres trobats
Articles 11 registres trobats  1 - 10següent  anar al registre:
1.
15 p, 364.2 KB Greedy approximation algorithms for sparse collections / Rey, Guillermo (Universidad Autónoma de Madrid. Departamento de Matemáticas)
We describe a greedy algorithm that approximates the Carleson constant of a collection of general sets. The approximation has a logarithmic loss in a general setting, but is optimal up to a constant with only mild geometric assumptions. [...]
2024 - 10.5565/PUBLMAT6812411
Publicacions matemàtiques, Vol. 68 Núm. 1 (2024) , p. 251-265 (Articles)  
2.
21 p, 503.1 KB Reverse Hölder inequalities and approximation spaces / Martín i Pedret, Joaquim (Universitat de Barcelona. Departament de Matemàtiques) ; Milman, Mario (Florida Atlantic University. Department of Mathematics)
We develop a simple geometry free context where one can formulate and prove general forms of Gehring's Lemma. We show how our result follows from a general inverse type reiteration theorem for approximation spaces.
2001 - 10.1006/jath.2000.3531
Journal of approximation theory, Vol. 109, Issue 1 (March 2001) , p. 82-109  
3.
28 p, 460.9 KB Rescaled extrapolation for vector-valued functions / Amenta, Alex (Delft Institute of Applied Mathematics (Delft, Països Baixos)) ; Lorist, Emiel (Delft Institute of Applied Mathematics (Delft, Països Baixos)) ; Veraar, Mark (Delft Institute of Applied Mathematics (Delft, Països Baixos))
We extend Rubio de Francia's extrapolation theorem for functions valued in UMD Banach function spaces, leading to short proofs of some new and known results. In particular we prove Littlewood-Paley-Rubio de Francia-type estimates and boundedness of variational Carleson operators for Banach function spaces with UMD concavifications.
2019 - 10.5565/PUBLMAT6311905
Publicacions matemàtiques, Vol. 63 Núm. 1 (2019) , p. 155-182 (Articles)  
4.
27 p, 462.9 KB Weighted Solyanik estimates for the strong maximal function / Hagelstein, Paul (Baylor University (Waco, Estats Units d'Amèrica). Department of Mathematics) ; Parissis, Ioannis (Universidad del País Vasco. Departamento de Matemáticas)
2018 - 10.5565/PUBLMAT6211807
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 133-159 (Articles)  
5.
20 p, 392.3 KB Weighted square function inequalities / Osekowski, Adam (University of Warsaw (Polònia). Department of Mathematics, Informatics and Mechanics)
For an integrable function f on [0, 1)d, let S(f) and M f denote the corresponding dyadic square function and the dyadic maximal function of f, respectively. The paper contains the proofs of the following statements. [...]
2018 - 10.5565/PUBLMAT6211804
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 75-94 (Articles)  
6.
19 p, 296.9 KB Recent progress on the Kakeya conjecture / Katz, Nets (Washington University at St. Louis. Department of Mathematics) ; Tao, Terence (University of California Los Angeles-UCLA. Department of Mathematics)
We survey recent developments on the Kakeya problem.
2002 - 10.5565/PUBLMAT_Esco02_07
Publicacions matemàtiques, Vol. Extra (2002) , p. 161-179  
7.
21 p, 360.3 KB Smoothing properties of the discrete fractional maximal operator on Besov and Triebel-Lizorkin spaces / Heikkinen, Toni (Aalto University. Department of Mathematics (Aalto, Finlàndia)) ; Tuominen, Heli (University of Jyväskylä. Department of Mathematics and Statistics)
Motivated by the results of Korry, and Kinnunen and Saksman, we study the behaviour of the discrete fractional maximal operator on fractional Hajlasz spaces, Hajlasz-Besov, and Hajlasz-Triebel-Lizorkin spaces on metric measure spaces. [...]
2014 - 10.5565/PUBLMAT_58214_19
Publicacions matemàtiques, Vol. 58, Núm. 2 (2014) , p. 379-399  
8.
25 p, 436.1 KB Atomic decomposition of real-variable type for Bergman spaces in the unit ball of Cn / Chen, Zeqian (Chinese Academy of Sciences. Wuhan Institute of Physics and Mathematics) ; Ouyang, Wei (Chinese Academy of Sciences. Institute of Geodesy and Geophysics (Wuhan, Xina))
In this paper we show that, for any 0 < p _ 1 and _ > 1, every (weighted) Bergman space Ap _(Bn) admits an atomic decomposition of real-variable type. More precisely, for each f 2 Ap _(Bn) there exist a sequence of (p;1)_-atoms ak with compact support and a scalar sequence f_kg such that f = P k _kak in the sense of distribution and Pk j_kjp . [...]
2014 - 10.5565/PUBLMAT_58214_18
Publicacions matemàtiques, Vol. 58, Núm. 2 (2014) , p. 353-377  
9.
36 p, 330.8 KB Distributional inequalities for non harmonic functions / González, María J. (Universidad de Cádiz. Departamento de Matemáticas) ; Koskela, P. (University of Jyväskylä. Department of Mathematics) ; González Llorente, José (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Nicolau, Artur (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
The relationship between the non-tangential maximal function and convenient versions of the area function of a general (non harmonic) function in a upper-half space are studied.
2003 - 10.1512/iumj.2003.52.2140
Indiana University mathematics journal, Vol. 52, No. 1 (2003) , p. 191-226  
10.
19 p, 237.3 KB A boundedness criterion for general maximal operators / Lerner, Andrei K. (Bar-Ilan University (Israel). Department of Mathematics) ; Ombrosi, Sheldy (Universidad Nacional del Sur(Argentina). Departamento de Matemática)
We consider maximal operators Mβ with respect to a basis β. In the case when Mβ satisfies a reversed weak type inequality, we obtain a boundedness criterion for Mβ on an arbitrary quasiBanach function space X. [...]
2010 - 10.5565/PUBLMAT_54110_03
Publicacions matemàtiques, V. 54 n. 1 (2010) p. 53-71  

Articles : 11 registres trobats   1 - 10següent  anar al registre:
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