Results 31 to 40 of about 2,771 (142)

Optimal factorization of Muckenhoupt weights [PDF]

open access: yesTransactions of the American Mathematical Society, 2000
Peter Jones’ theorem on the factorization of A p A_p  weights is sharpened for weights with bounds near  1 1 , allowing the factorization to be performed continuously near the limiting, unweighted case. When 1 > p > ∞ 1>p>\infty and
openaire   +5 more sources

Boundedness of Fractional Integral Operators on Hardy‐Amalgam Spaces

open access: yesJournal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
We establish the boundedness of the fractional integral operators on the Hardy‐amalgam spaces.
Ka Luen Cheung   +3 more
wiley   +1 more source

Boundedness of One-Sided Oscillatory Integral Operators on Weighted Lebesgue Spaces

open access: yesAbstract and Applied Analysis, 2014
We consider one-sided weight classes of Muckenhoupt type, but larger than the classical Muckenhoupt classes, and study the boundedness of one-sided oscillatory integral operators on weighted Lebesgue spaces using interpolation of operators with change of
Zunwei Fu   +3 more
doaj   +1 more source

Summation of Multiple Fourier Series in Matrix Weighted -Spaces

open access: yesJournal of Mathematics, 2013
This paper is concerned with rectangular summation of multiple Fourier series in matrix weighted -spaces. We introduce a product Muckenhoupt condition for matrix weights and prove that rectangular Fourier partial sums converge in the corresponding ...
Morten Nielsen
doaj   +1 more source

On approximation properties of functions by means of Fourier and Faber series in weighted Lebesgue spaces with variable exponent [PDF]

open access: yesMathematica Moravica, 2023
In this paper the approximation of functions by linear means of Fourier series in weighted variable exponent Lebesgue spaces was studied. This result was applied to the approximation of the functions by linear means of Faber series in Smirnov classes ...
Jafarov Sadulla Z.
doaj  

On the extension of Muckenhoupt weights in metric spaces

open access: yesNonlinear Analysis, 2022
A theorem by Wolff states that weights defined on a measurable subset of $\mathbb{R}^n$ and satisfying a Muckenhoupt-type condition can be extended into the whole space as Muckenhoupt weights of the same class. We give a complete and self-contained proof of this theorem generalized into metric measure spaces supporting a doubling measure.
Kurki, Emma Karoliina, Mudarra, Carlos
openaire   +4 more sources

The maximal operator in weighted variable spaces Lp(⋅)

open access: yesJournal of Function Spaces and Applications, 2007
We study the boundedness of the maximal operator in the weighted spaces Lp(⋅)(ρ) over a bounded open set Ω in the Euclidean space ℝn or a Carleson curve Γ in a complex plane.
Vakhtang Kokilashvili   +2 more
doaj   +1 more source

Self-improving properties of weighted Gehring classes with applications to partial differential equations

open access: yesAdvances in Difference Equations, 2021
In this paper, we prove that the self-improving property of the weighted Gehring class G λ p $G_{\lambda }^{p}$ with a weight λ holds in the non-homogeneous spaces.
S. H. Saker   +3 more
doaj   +1 more source

The multilinear strong maximal function [PDF]

open access: yes, 2010
A multivariable version of the strong maximal function is introduced and a sharp distributional estimate for this operator in the spirit of the Jessen, Marcinkiewicz, and Zygmund theorem is obtained.
Grafakos, Loukas   +3 more
core   +3 more sources

On Singular Integrals with Cauchy Kernel on Weight Subspaces: The Basicity Property of Sines and Cosines Systems in Weight Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
A singular operator with Cauchy kernel on the subspaces of weight Lebesgue space is considered. A sufficient condition for a bounded action of this operator from a subspace to another subspace of weight Lebesgue space of functions is found.
Tofig Isa Najafov, Saeed Farahani
doaj   +1 more source

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