Results 61 to 70 of about 2,707 (136)

Pointwise Multipliers on Weak Morrey Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2020
We consider generalized weak Morrey spaces with variable growth condition on spaces of homogeneous type and characterize the pointwise multipliers from a generalized weak Morrey space to another one.
Kawasumi Ryota, Nakai Eiichi
doaj   +1 more source

A note on boundedness of operators in Grand Grand Morrey spaces

open access: yes, 2011
In this note we introduce grand grand Morrey spaces, in the spirit of the grand Lebesgue spaces. We prove a kind of \textit{reduction lemma} which is applicable to a variety of operators to reduce their boundedness in grand grand Morrey spaces to the ...
A Almeida   +15 more
core   +1 more source

On generalized Lorentz-Zygmund spaces

open access: yes, 1999
WestudygeneralizedLorentz–Zygmund spaceswith broken logarithmic functions. We derive necessary and sufficient conditions for embeddings between them. We give a complete characterization of their associate spaces.
B. Opic, L. Pick
semanticscholar   +1 more source

Norm attaining bilinear forms on L1(μ)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 12, Page 833-837, 2000., 2000
Given a finite measure μ, we show that the set of norm attaining bilinear forms is dense in the space of all continuous bilinear forms on L1(μ) if and only if μ is purely atomic.
Yousef Saleh
wiley   +1 more source

An Efficient Algorithm for Reconstruction Images Corrupted by Some Multiplicative Noises

open access: yesMoroccan Journal of Pure and Applied Analysis, 2019
In this paper, we propose a novel hybrid model for restoration of images corrupted by multiplicative noise. Using a MAP estimator, we can derive a functional whose minimizer corresponds to the denoised image we want to recover.
Ziad L., Oubbih O., Sniba F.
doaj   +1 more source

Weighted weak-type inequalities for square functions

open access: yes, 2020
The paper is devoted to weighted weak-type inequalities for square functions of continuous-path martingales and identifies the optimal dependence of the weak norm on the characteristic of the weight.
A. Osȩkowski
semanticscholar   +1 more source

L‐correspondences: the inclusion Lp(μ, X) ⊂ Lq(ν, Y)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 19, Issue 4, Page 723-726, 1996., 1995
In order to study inclusions of the type Lp(μ, X) ⊂ Lq(ν, Y), we introduce the notion of an L‐correspondence. After proving some basic theorems, we give characterizations of some types of L‐correspondences and offer a conjecture that is similar to an equimeasurability theorem.
C. Bryan Dawson
wiley   +1 more source

Weighted Variable Exponent Sobolev spaces on metric measure spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
In this article we define the weighted variable exponent-Sobolev spaces on arbitrary metric spaces, with finite diameter and equipped with finite, positive Borel regular outer measure.
Hassib Moulay Cherif, Akdim Youssef
doaj   +1 more source

An improvement of the Kolmogorov-Riesz compactness theorem

open access: yes, 2018
The purpose of this short note is to provide a new and very short proof of a result by Sudakov, offering an important improvement of the classical result by Kolmogorov-Riesz on compact subsets of Lebesgue ...
Hanche-Olsen, Harald   +2 more
core   +1 more source

Some class of nonlinear inequalities with gradient constraints in Orlicz spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
In the present paper, we show the existence of solutions of some nonlinear inequalities of the form 〈Au + g(x, u,∇ u), v −u〉 ≥〈 f, v −u〉 with gradient constraint that depend on the solution itself, where A is a Leray-Lions operator defined on Orlicz ...
Ajagjal S., Meskine D.
doaj   +1 more source

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