Results 1 to 10 of about 56,362 (113)

On small Lebesgue spaces [PDF]

open access: yesJournal of Function Spaces and Applications, 2005
We consider a generalized version of the small Lebesgue spaces, introduced in [5] as the associate spaces of the grand Lebesgue spaces. We find a simplified expression for the norm, prove relevant properties, compute the fundamental function and discuss ...
Claudia Capone, Alberto Fiorenza
doaj   +4 more sources

Embeddings between grand, small, and variable Lebesgue spaces [PDF]

open access: yesMathematical Notes, 2017
We give conditions on the exponent function $p(\cdot)$ that imply the existence of embeddings between grand, small and variable Lebesgue spaces. We construct examples to show that our results are close to optimal. Our work extends recent results by the second author, Rakotoson and Sbordone.
Cruz-Uribe, D.   +2 more
openaire   +4 more sources

Characterization of interpolation between Grand, small or classical Lebesgue spaces [PDF]

open access: yesNonlinear Analysis, 2018
In this paper, we show that the interpolation spaces between Grand, small or classical Lebesgue are so called Lorentz-Zygmund spaces or more generally $G $-spaces. As a direct consequence of our results any Lorentz-Zygmund space $L^{a,r}({\rm Log}\, L)^ $, is an interpolation space in the sense of Peetre between either two Grand Lebesgue spaces or ...
Fiorenza, Alberto   +4 more
openaire   +7 more sources

Real Interpolation of Small Lebesgue Spaces in a Critical Case

open access: yesJournal of Function Spaces, 2018
We establish an interpolation formula for small Lebesgue spaces in a critical case.
Irshaad Ahmed   +2 more
doaj   +2 more sources

A direct approach to the duality of grand and small Lebesgue spaces [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2009
Let \(\mathcal{M}_{0}\) be the set of all Lebesgue measurable function in the interval \((0,1)\), finite a.e.\ in it and let \(\mathcal{M}_{0}^{+}\) be the class of all nonnegative functions of \(\mathcal{M}_{0}\). For \(f \in \mathcal{M}_{0}\), the decreasing rearrangement \(f^{*}\) of \(f\) is defined by \[ f^{*} = \inf\{ \lambda > 0: |\{x \in (0,1):
Giovanni Di Fratta, Alberto Fiorenza
exaly   +4 more sources

Interior Schauder-Type Estimates for Higher-Order Elliptic Operators in Grand-Sobolev Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
In this paper  an elliptic operator of the $m$-th order  $L$ with continuous coefficients in the $n$-dimensional domain $\Omega \subset R^{n} $ in the non-standard Grand-Sobolev space $W_{q)}^{m} \left(\Omega \right)\, $ generated by the norm $\left\| \,
Bilal Bilalov, Sabina Sadigova
doaj   +1 more source

Bilinear multipliers of small Lebesgue spaces

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2021
Let $G$ be a locally compact abelian metric group with Haar measure $\lambda $ and $\hat{G}$ its dual with Haar measure $\mu ,$ and $\lambda ( G) $ is finite.
Öznur KULAK, A.Turan GÜRKANLI
openaire   +6 more sources

Uniform estimates with data from generalized Lebesgue spaces in periodic structures

open access: yesBoundary Value Problems, 2021
We study various types of uniform Calderón–Zygmund estimates for weak solutions to elliptic equations in periodic homogenization. A global regularity is obtained with respect to the nonhomogeneous term from weighted Lebesgue spaces, Orlicz spaces, and ...
Yunsoo Jang
doaj   +1 more source

Gradient estimates in generalized Orlicz spaces for quasilinear elliptic equations via extrapolation

open access: yesAIMS Mathematics, 2023
The gradient estimates in the generalized Orlicz space for weak solutions of a class of quasi-linear elliptic boundary value problems are obtained using the modern technique of extrapolation.
Ruimin Wu , Yinsheng Jiang, Liyuan Wang
doaj   +1 more source

Global gradient estimates for Dirichlet problems of elliptic operators with a BMO antisymmetric part

open access: yesAdvances in Nonlinear Analysis, 2022
Let n≥2n\ge 2 and Ω⊂Rn\Omega \subset {{\mathbb{R}}}^{n} be a bounded nontangentially accessible domain. In this article, the authors investigate (weighted) global gradient estimates for Dirichlet boundary value problems of second-order elliptic equations
Yang Sibei, Yang Dachun, Yuan Wen
doaj   +1 more source

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