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In this article, we consider a higher-order elliptic equation with nonsmooth coefficients with respect to Orlicz spaces on the domain $\Omega\subset\mathbb{R}^{n}$. The separable subspace of this space is distinguished in which infinitely…

Analysis of PDEs · Mathematics 2024-01-29 Javad A. Asadzade

For a noncommutative Orlicz space associated with a semifnite von Neumann algebra, a faithful normal semifnite trace and an Orlicz function satisfying $(\delta_2,\Delta_2)-$condition, an individual ergodic theorem is proved.

Operator Algebras · Mathematics 2016-02-02 Vladimir Chilin , Semyon Litvinov

We characterize when an Orlicz space $L^A$ is almost compactly (uniformly absolutely continuously) embedded into a Lorentz space $L^{p,q}$ in terms of a balance condition involving parameters $p,q\in[1,\infty]$, and a Young function $A$. In…

Functional Analysis · Mathematics 2024-10-04 Vít Musil , Luboš Pick , Jakub Takáč

In this paper, we characterize hypercyclic sequences of weighted translation operators on an Orlicz space in the context of locally compact hypergroups.

Functional Analysis · Mathematics 2020-03-27 Vishvesh Kumar , Seyyed Mohammad Tabatabaie

We study some new strongly almost lacunary statistical $A$-convergent sequence space of order $\alpha$ defined by a Musielak-Orlicz function. We also give some inclusion relations between the newly introduced class of sequences with the…

Functional Analysis · Mathematics 2015-08-07 Ekrem Savas , Stuti Borgohain

This study examines a modified Kantorovich approach applied to generalized sampling series. The paper establishes that the approximation order to a function using these modified operators is atleast as good as that achieved by classical…

Functional Analysis · Mathematics 2025-04-22 Pooja Gupta

There are two versions of Orlicz-Morrey spaces (on $\mathbb{R}^n$), defined by Nakai in 2004 and by Sawano, Sugano, and Tanaka in 2012. In this paper we discuss the inclusion properties of these two spaces and compare the results. Computing…

Functional Analysis · Mathematics 2018-02-20 Al A. Masta , Hendra Gunawan , Wono Setya-Budhi

We establish some existence and regularity results to the Dirichlet problem, for a class of quasilinear elliptic equations involving a partial differential operator, depending on the gradient of the solution. Our results are formulated in…

Analysis of PDEs · Mathematics 2022-07-22 Giuseppina Barletta , Elisabetta Tornatore

Necessary and sufficient conditions under which the Ces\`{a}ro--Orlicz sequence space $\cfi$ is nontrivial are presented. It is proved that for the Luxemburg norm, Ces\`{a}ro--Orlicz spaces $\cfi$ have the Fatou property. Consequently, the…

Functional Analysis · Mathematics 2007-05-23 Yunan Cui , Henryk Hudzik , Narin Petrot , Suthep Suantai , Alicja Szymaszkiewicz

Dual pairs of interior and exterior Hardy spaces associated to a simple closed Lipschitz planar curve are considered, leading to a M\"obius invariant function bounding the norm of the Cauchy transform $\bf{C}$ from below. This function is…

Complex Variables · Mathematics 2025-05-28 David E. Barrett , Luke D. Edholm

We show that injective isometries in Orlicz space $L_M$ have to preserve disjointness, provided that Orlicz function $M$ satisfies $\Delta_2$-condition, has a continuous second derivative $M''$, satisfies another ``smoothness type''…

Functional Analysis · Mathematics 2007-05-23 Beata Randrianantoanina

The purpose of this paper is to introduce the space of geometric sequences that are strongly summable with respect to an Orlicz function and the Fibonacci difference sequences.Also some topological properties and inclusion relations between…

Functional Analysis · Mathematics 2021-01-12 Salila Dutta , Saubhagyalaxmi Singh , Sagarika Dash

In this note we prove that $\frac{1}{n!} \sum_{\pi} (\sum_{i=1}^n |x_i a_{i,\pi(i)} |^2)^{1/2}$ is equivalent to a Musielak-Orlicz norm $\norm{x}_{\sum M_i}$. We also obtain the inverse result, i.e., given the Orlicz functions, we provide a…

Functional Analysis · Mathematics 2013-05-08 Joscha Prochno

We give weighted norm inequalities for the maximal fractional operator $ \mathcal M_{q,\beta}$ of Hardy-Littlewood and the fractional integral $I_{\gamma}$. These inequalities are established between $(L^{q},L^{p}) ^{\alpha}(X,d,\mu)$…

Classical Analysis and ODEs · Mathematics 2009-01-28 Justin Feuto , Ibrahim Fofana , Konin Koua

For an Orlicz function $\varphi$ and a decreasing weight $w$, two intrinsic exact descriptions are presented for the norm in the K\"othe dual of an Orlicz-Lorentz function space $\Lambda_{\varphi,w}$ or a sequence space…

Functional Analysis · Mathematics 2016-06-20 Anna Kamińska , Karol Leśnik , Yves Raynaud

In the dual $L_{\Phi^*}$ of a $\Delta_2$-Orlicz space $L_\Phi$, that we call a dual Orlicz space, we show that a proper (resp. finite) convex function is lower semicontinuous (resp. continuous) for the Mackey topology…

Functional Analysis · Mathematics 2018-01-03 Freddy Delbaen , Keita Owari

In this paper we completely characterize the norm attainment set of a bounded linear operator on a Hilbert space. This partially answers a question raised recently in [\textit{D. Sain, On the norm attainment set of a bounded linear…

Functional Analysis · Mathematics 2019-03-20 Debmalya Sain

In this paper we extend a previous result of the author [Lis07] of characterization of absolutely continuous curves in Wasserstein spaces to a more general class of spaces: the spaces of probability measures endowed with the…

Metric Geometry · Mathematics 2014-03-03 Stefano Lisini

We prove two weak compactness criteria in Musielak-Orlicz spaces for $N$-functions satisfying the $\Delta_2$-condition. They extend criteria from And\^o for Orlicz spaces to this setting of non-symmetrical Banach function spaces. As…

Functional Analysis · Mathematics 2026-01-28 Mauro Sanchiz

Motivated by some recent results, but also referring to recognized classics, we compute the essential norm and the weak essential norm of multiplication operators acting between two distinct K{\" o}the spaces both defined over the same…

Functional Analysis · Mathematics 2024-03-05 Tomasz Kiwerski , Jakub Tomaszewski
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