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Related papers: Extrapolation of compactness on weighted spaces

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This paper addresses a novel weighted Riesz--Kolmogorov theorem and the extrapolation of multilinear compact operators in the context of weighted variable Lebesgue spaces. We establish the latter result via our Riesz--Kolmogorov theorem…

Functional Analysis · Mathematics 2026-05-27 Spyridon Kakaroumpas , Stefanos Lappas

We establish extrapolation of compactness for bilinear operators in the scale of weighted variable exponent Lebesgue spaces. First, we prove an abstract principle relying on the Cobos-Fern\'{a}ndez-Cabrera-Mart\'{i}nez theorem. Then, as an…

Classical Analysis and ODEs · Mathematics 2025-12-23 Spyridon Kakaroumpas , Stefanos Lappas

We improve on several weighted inequalities of recent interest by replacing a part of the A_p bounds by weaker A_\infty estimates involving Wilson's A_\infty constant \[ [w]_{A_\infty}':=\sup_Q\frac{1}{w(Q)}\int_Q M(w\chi_Q). \] In…

Classical Analysis and ODEs · Mathematics 2011-03-30 Tuomas Hytönen , Carlos Pérez

We study the weighted compactness and boundedness properties of Toeplitz operators on the Bergman space with respect to B\'ekoll\`e-Bonami type weights. Let $T_u$ denote the Toeplitz operator on the (unweighted) Bergman space of the unit…

Complex Variables · Mathematics 2023-10-18 Cody B. Stockdale , Nathan A. Wagner

In this paper we prove off-diagonal, limited range, multilinear, vector-valued, and two-weight versions of the Rubio de Francia extrapolation theorem in general quasi-Banach function spaces. We prove mapping properties of the generalization…

Classical Analysis and ODEs · Mathematics 2024-09-16 Zoe Nieraeth

Let $T$ be a bilinear Calder\'on-Zygmund singular integral operator and $T^*$ be its corresponding truncated maximal operator. For any $b\in\text{BMO}(\mathbb {R}^n)$ and $\vec{b}=(b_1,\ b_2)\in\text{BMO}(\mathbb {R}^n)\times\text…

Classical Analysis and ODEs · Mathematics 2020-12-29 Shifen Wang , Qingying Xue

We give an extension of Rubio de Francia's extrapolation theorem for functions taking values in UMD Banach function spaces to the multilinear limited range setting. In particular we show how boundedness of an $m$-(sub)linear operator…

Classical Analysis and ODEs · Mathematics 2024-05-31 Emiel Lorist , Zoe Nieraeth

The bidual of the closure of smooth functions with respect to the Morrey norm coincides with the Morrey space. This assertion is generalized to some Muckenhoupt weighted Morrey spaces. We combine this fact with basic extrapolation…

Functional Analysis · Mathematics 2016-07-18 Marcel Rosenthal , Hans-Juergen Schmeisser

In this paper, we develop a comprehensive weighted theory for a class of Banach-valued multilinear bounded oscillation operators on measure spaces, which merges multilinear Calder\'{o}n-Zygmund operators with a quantity of operators beyond…

Classical Analysis and ODEs · Mathematics 2024-03-26 Mingming Cao , Gonzalo Ibañez-Firnkorn , Israel P. Rivera-Ríos , Qingying Xue , Kôzô Yabuta

The optimal sufficient conditions for the $L^p$-to-$L^q$ compactness of commutators of singular integral operators of both Calder\'on-Zygmund and of rough type are shown in the different exponent ranges $``q>p"$, $``q=p"$ and $``q<p"$ to…

Classical Analysis and ODEs · Mathematics 2025-12-08 Tuomas Oikari

In a recent paper [JFA, 278 (2020), 108401], Choe et al. obtained characterizations for bounded and compact differences of two weighted composition operators acting on standard weighted Bergman spaces over the unit disk in terms of Carleson…

Functional Analysis · Mathematics 2025-07-21 Cezhong Tong , Zicong Yang , Zehua Zhou

We prove that operators satisfying the hypotheses of the extrapolation theorem for Muckenhoupt weights are bounded on weighted Morrey spaces. As a consequence, we obtain at once a number of results that have been proved individually for…

Functional Analysis · Mathematics 2017-10-23 Javier Duoandikoetxea , Marcel Rosenthal

Using the extrapolation of one-sided weights, we establish the boundedness of commutators generated by weighted Lipschitz functions and one-sided singular integral operators from weighted Lebesgue spaces to weighted one-sided…

Functional Analysis · Mathematics 2012-06-05 Zun Wei Fu , Qing Yan Wu , Guang Lan Wang

We give two weighted norm estimates for higher order commutator of classical operators such as singular integral and fractional type operators, between weighted $L^p$ and certain spaces that include Lipschitz, BMO and Morrey spaces. We also…

Analysis of PDEs · Mathematics 2020-09-29 Gladis Pradolini , Wilfredo Ramos , Jorgelina Recchi

Let $T$ be a Calder\'on-Zygmund singular integral operator. In this paper, we will show some weighted boundedness properties of commutator $[b,T]$ on the weighted Morrey spaces $L^{p,\kappa}(w)$ under appropriate conditions on the weight…

Classical Analysis and ODEs · Mathematics 2012-03-19 Hua Wang

We study the interpolation and extrapolation properties of strictly singular operators between different $L_p$ spaces. To this end, the structure of strictly singular non-compact operators between $L_p-L_q$ spaces is analyzed. Among other…

Functional Analysis · Mathematics 2017-06-28 Francisco L. Hernández , Evgeny M. Semenov , Pedro Tradacete

We develop a compact version of $T1$ theorem for singular integrals of Zygmund type on $\mathbb{R}^3$. More specifically, if a $(D_{\theta}, \delta_1, \delta_{2, 3})$-Calder\'{o}n-Zygmund operator $T$ associated with Zygmund dilations…

Classical Analysis and ODEs · Mathematics 2025-04-30 Mingming Cao , Jiao Chen , Zhengyang Li , Fanghui Liao , Kôzô Yabuta , Juan Zhang

In this paper, we focus on the weighted Bergman spaces $A_{\varphi}^{p}$ in $\mathbb{D}$ with $\varphi\in\mathcal{W}_{0}$. We first give characterizations of those finite positive Borel measures $\mu$ in $\mathbb{D}$ such that the embedding…

Functional Analysis · Mathematics 2021-07-07 Yiyuan Zhang , Xiaofeng Wang , Zhangjian Hu

We prove Rubio de Francia extrapolation results in Lebesgue and grand Lebesgue spaces for quasi monotone functions with $QB_{\beta,p}$ weights. The extrapolation in Lebesgue spaces with the weight class $QB_{\beta,\infty}$ has also been…

Functional Analysis · Mathematics 2022-02-08 Arun Pal Singh , Ragul Panchal , Pankaj Jain , Monika Singh

Let $p\in(0, 1]$. In this paper, the authors prove that a sublinear operator $T$ (which is originally defined on smooth functions with compact support) can be extended as a bounded sublinear operator from product Hardy spaces $H^p({{\mathbb…

Classical Analysis and ODEs · Mathematics 2009-06-08 Der-Chen Chang , Dachun Yang , Yuan Zhou