Results 61 to 70 of about 145 (135)

Banach algebra of the Fourier multipliers on weighted Banach function spaces

open access: yesConcrete Operators, 2015
Let MX,w(ℝ) denote the algebra of the Fourier multipliers on a separable weighted Banach function space X(ℝ,w).We prove that if the Cauchy singular integral operator S is bounded on X(ℝ, w), thenMX,w(ℝ) is continuously embedded into L∞(ℝ).
Karlovich Alexei
doaj   +1 more source

Tauberian conditions, Muckenhoupt weights, and differentiation properties of weighted bases [PDF]

open access: yesTransactions of the American Mathematical Society, 2015
Let B \mathfrak {B} be a homothecy invariant collection of convex ...
Hagelstein, Paul   +2 more
openaire   +5 more sources

A direct proof of the weighted Pólya–Knopp inequality following Carleson’s method

open access: yesComptes Rendus. Mathématique
The aim of the paper is to provide a direct proof of the weighted Pólya–Knopp inequality. This inequality (which is a limiting case of the Ariño–Muckenhoupt inequalities), involving non-increasing functions, was initially established by Sbordone–Wik, who
Kondo, Emu   +2 more
doaj   +1 more source

Harnack's inequality for p-Laplacian equations with Muckenhoupt weight degenerating in part of the domain

open access: yesElectronic Journal of Differential Equations, 2017
In this article we consider quasi-linear second-order elliptic equations of divergence structure with Makenhaupt weight that degenerates over a small part of the domain. We show that the classical Harnack's inequality does not hold in this case, and
Yuriy A. Alkhutov, Sarvan T. Huseynov
doaj  

Muckenhoupt weights and Lindelöf theorem for harmonic mappings

open access: yesAdvances in Mathematics, 2015
We extend the result of Lavrentiev which asserts that the harmonic measure and the arc-length measure are $A_\infty$ equivalent in a chord-arc Jordan domain. By using this result we extend the classical result of Lindelöf to the class of quasiconformal (q.c.) harmonic mappings by proving the following assertion.
openaire   +3 more sources

Explicit Wavelet Approximation in Weighted Besov Spaces with Applications to Piecewise Regular Series Under Structural Breaks

open access: yesMathematics
We establish explicit direct and inverse approximation estimates for biorthogonal multiresolution projections on weighted Besov spaces over Muckenhoupt Ap weights.
Kai-Cheng Wang
doaj   +1 more source

An extension of the Muckenhoupt–Wheeden theorem to generalized weighted Morrey spaces

open access: yesGeorgian Mathematical Journal, 2020
Abstract In this paper, we find the condition on a function ω and a weight v which ensures the equivalency of norms of the Riesz potential and the fractional maximal function in generalized weighted Morrey spaces
Mustafayev, R.   +1 more
openaire   +4 more sources

Removable sets for Sobolev spaces with Muckenhoupt $A_1$-weight

open access: yesSibirskie Elektronnye Matematicheskie Izvestiya, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Parabolic Muckenhoupt weights in the Euclidean space

open access: yesJournal of Mathematical Analysis and Applications, 2011
The author introduces the parabolic analogue to Muckenhoupt's \(A_p\) weights. Given a cube \(Q=\prod_{i=1}^n [a_i, a_i+h]\) and \(r>0\), the author denotes by \[ Q^{+,r}= \prod_{i=1}^{n-1} \big[a_i,a_i+h\big]\times \big[a_n+rh,a_n+(r+1)h\big] \] the forward in time \(r\)-translation of the cube. Similarly, the backward \(r\)-translation is denoted by \
openaire   +1 more source

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