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Related papers: New bounds for bilinear Calder\'on-Zygmund operato…

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We prove a bilinear form sparse domination theorem that applies to many multi-scale operators beyond Calder\'on-Zygmund theory, and also establish necessary conditions. Among the applications, we cover large classes of Fourier multipliers,…

Classical Analysis and ODEs · Mathematics 2025-01-24 David Beltran , Joris Roos , Andreas Seeger

We obtain an alternative approach to recent results by M. Lacey \cite{La} and T. Hyt\"onen {\it et al.} \cite{HRT} about a pointwise domination of $\omega$-Calder\'on-Zygmund operators by sparse operators. This approach is rather elementary…

Classical Analysis and ODEs · Mathematics 2016-06-03 Andrei K. Lerner

In recent years, it has been well understood that a Calder\'on-Zygmund operator $T$ is pointwise controlled by a finite number of dyadic operators of a very simple structure (called the sparse operators). We obtain a similar pointwise…

Classical Analysis and ODEs · Mathematics 2017-01-06 Andrei K. Lerner , Sheldy Ombrosi , Israel P. Rivera-Ríos

In this expository article, we briefly survey the main known schemes of proof of sparse domination principles within harmonic analysis. We then use the one based on the Calder\'on-Zygmund decomposition to prove a dual sparse domination…

Classical Analysis and ODEs · Mathematics 2025-09-10 Fernando Ballesta-Yagüe , José M. Conde-Alonso

Motivated by the study of kernels of bilinear pseudodifferential operators with symbols in a H\"ormander class of critical order, we investigate boundedness properties of strongly singular Calder\'on--Zygmund operators in the bilinear…

Classical Analysis and ODEs · Mathematics 2018-04-26 Árpád Bényi , Lucas Chaffee , Virginia Naibo

Let $T$ be a multilinear Calder\'on-Zygmund operator of type $\omega$ with $\omega(t)$ being nondecreasing and satisfying a kind of Dini's type condition. Let $T_{\Pi\vec{b}}$ be the iterated commutators of $T$ with $BMO$ functions. The…

Classical Analysis and ODEs · Mathematics 2016-05-25 Pu Zhang , Jie Sun

In this article, we address pointwise sparse domination for multilinear Calder\'on-Zygmund operators on upper doubling, geometrically doubling metric measure spaces. As a consequence, we have obtained sharp quantitative weighted estimates…

Classical Analysis and ODEs · Mathematics 2020-06-23 Abhishek Ghosh , Ankit Bhojak , Parasar Mohanty , Saurabh Shrivastava

We represent a general bilinear Calder\'on-Zygmund operator as a sum of simple dyadic operators. The appearing dyadic operators also admit a simple proof of a sparse bound. In particular, the representation implies a so called sparse T1…

Classical Analysis and ODEs · Mathematics 2019-01-23 Kangwei Li , Henri Martikainen , Yumeng Ou , Emil Vuorinen

In this paper we study weighted estimates for the multi-frequency $\omega-$Calder\'{o}n-Zygmund operators $T$ associated with the frequency set $\Theta=\{\xi_1,\xi_2,\dots,\xi_N\}$ and modulus of continuity $\omega$ satisfying the usual…

Classical Analysis and ODEs · Mathematics 2023-08-15 Saurabh Shrivastava , K. S. Senthil Raani

In this paper, the main purpose is to consider a number of results concerning boundedness of multilinear fractional Calder\'{o}n-Zygmund operators with kernels of mild regularity. Let $T_{\alpha}$ be a multilinear fractional…

Classical Analysis and ODEs · Mathematics 2023-07-06 J. Wu , P. Zhang

In this paper we consider a generalized version of bounded oscillation operators, involving new parameters in the definition, as well as considering the operators on vector-valued function spaces. With this definition we will capture some…

Classical Analysis and ODEs · Mathematics 2023-08-08 Grigori A. Karagulyan

We prove weighted estimates for rough bilinear singular integral operators with kernel $$K(y_1, y_2) = \frac{\Omega((y_1,y_2)/|(y_1,y_2)|)}{|(y_1, y_2)|^{2d}},$$ where $y_i \in \mathbb{R}^{d}$ and $\Omega \in L^{\infty}(S^{2d-1})$ with…

Classical Analysis and ODEs · Mathematics 2017-06-21 Alexander Barron

The recent proof of the sharp weighted bound for Calder\'on-Zygmund operators has led to much investigation in sharp mixed bounds for operators and commutators, that is, a sharp weighted bound that is a product of at least two different…

Classical Analysis and ODEs · Mathematics 2014-01-10 Theresa C. Anderson , Wendolín Damián

We prove boundedness of Calder\'on-Zygmund operators acting in Banach functions spaces on domains, defined by the $L_1$ Carleson functional and $L_q$ ($1<q<\infty$) Whitney averages. For such bounds to hold, we assume that the operator maps…

Classical Analysis and ODEs · Mathematics 2022-02-18 Tuomas Hytönen , Andreas Rosén

We prove weighted weak-type $(r,r)$ estimates for operators satisfying $(r,s)$ limited-range sparse domination of $\ell^q$-type. Our results contain improvements for operators satisfying limited-range and square function sparse domination.…

Classical Analysis and ODEs · Mathematics 2024-09-16 Zoe Nieraeth , Cody B. Stockdale

In this note we give simple proofs of several results involving maximal truncated Calde\'on-Zygmund operators in the general setting of rearrangement invariant quasi-Banach function spaces by sparse domination. Our techniques allow us to…

Classical Analysis and ODEs · Mathematics 2019-10-29 Theresa C. Anderson , Bingyang Hu

In this paper, we establish sparse dominations for the Dunkl-Calder\'on-Zygmund operators and their commutators in the Dunkl setting. As applications, we first define the Dunkl-Muckenhoupt $A_p$ weight and obtain the weighted bounds for the…

Classical Analysis and ODEs · Mathematics 2025-05-27 Yanping Chen , Xueting Han

We prove Bloom type two-weight inequalities for commutators of multilinear singular integral operators including Calder\'on-Zygmund operators and their dyadic counterparts. Such estimates are further extended to a general higher order…

Classical Analysis and ODEs · Mathematics 2017-10-30 Ishwari Kunwar , Yumeng Ou

In this note, we show that if $T$ is a Calder\'on--Zygmund operator satisfying $T(1)=0$, then the usual sparse domination for $T$ can be sharpened by replacing local averages by local mean oscillations. As an application, we characterize…

Classical Analysis and ODEs · Mathematics 2026-05-27 Andrei K. Lerner

In this work we fully characterize the classes of matrix weights for which multilinear Calder\'on-Zygmund operators extend to bounded operators on matrix weighted Lebesgue spaces. To this end, we develop the theory of multilinear singular…

Functional Analysis · Mathematics 2024-12-20 Spyridon Kakaroumpas , Zoe Nieraeth
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