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Related papers: Weighted Estimates for Rough Bilinear Singular Int…

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Let $r>\frac{4}{3}$ and let $\Omega \in L^{r}(\mathbb{S}^{2n-1})$ have vanishing integral. We show that the bilinear rough singular integral $$T_{\Omega}(f,g)(x)= \textrm{p.v.}…

Classical Analysis and ODEs · Mathematics 2020-09-08 Loukas Grafakos , Zhidan Wang , Qingying Xue

Let $\Omega$ be a function on $\mathbb{R}^{mn} $, homogeneous of degree zero, and satisfy a cancellation condition on the unit sphere $\mathbb{S}^{mn-1}$. In this paper, we show that the multilinear singular integral operator \[…

Classical Analysis and ODEs · Mathematics 2025-06-24 Binwei Dan , Qingying Xue

The purpose of this paper is to study sparse domination estimates of composition operators in the setting of complex function theory. The method originates from proofs of the $A_2$ theorem for Calder\'on-Zygmund operators in harmonic…

Complex Variables · Mathematics 2020-01-09 Bingyang Hu , Songxiao Li , Yecheng Shi , Brett D. Wick

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 prove that bilinear forms associated to the rough homogeneous singular integrals $T_\Omega$ on $\mathbb R^d$, where the angular part $\Omega \in L^q (S^{d-1})$ has vanishing average and $1<q\leq \infty$, and to Bochner-Riesz means at the…

Classical Analysis and ODEs · Mathematics 2018-02-28 Jose M. Conde-Alonso , Amalia Culiuc , Francesco Di Plinio , Yumeng Ou

We obtain a weak type $(1,1)$ estimate for a maximal operator associated with the classical rough homogeneous singular integrals $T_{\Omega}$. In particular, this provides a different approach to a sparse domination for $T_{\Omega}$…

Classical Analysis and ODEs · Mathematics 2017-05-23 Andrei K. Lerner

In this paper we obtain a pointwise sparse domination for generalized H\"ormander operators and also for iterated commutators with those operators. As a particular case of our result we obtain a extension of the sparse domination for…

Classical Analysis and ODEs · Mathematics 2018-06-04 Gonzalo H. Ibañez-Firnkorn , Israel P. Rivera-Ríos

This paper gives the pointwise sparse dominations for variation operators of singular integrals and commutators with kernels satisfying the $L^r$-H\"{o}rmander conditions. As applications, we obtain the strong type quantitative weighted…

Classical Analysis and ODEs · Mathematics 2021-05-11 Yongming Wen , Huoxiong Wu , Qingying Xue

In this work we extend Lacey's domination theorem to prove the pointwise control of bilinear Calder\'on--Zygmund operators with Dini--continuous kernel by sparse operators. The precise bounds are carefully tracked following the spirit in a…

Classical Analysis and ODEs · Mathematics 2018-09-05 Wendolín Damián , Mahdi Hormozi , Kangwei Li

Let $L$ be a closed, densely defined operator on $L^2(\mathbb{R}^n)$ satisfying suitable $L^p-L^q$ off-diagonal estimates of order $\kappa > 0$. This paper aims to investigate the two-weight estimate and the Bloom weighted estimate for the…

Classical Analysis and ODEs · Mathematics 2024-11-12 The Anh Bui , Linfei Zheng

We extend Lerner's recent approach to sparse domination of Calder\'on--Zygmund operators to upper doubling (but not necessarily doubling), geometrically doubling metric measure spaces. Our domination theorem is different from the one…

Classical Analysis and ODEs · Mathematics 2019-04-05 Alexander Volberg , Pavel Zorin-Kranich

This paper refines the main results from our previous study on sparse bounds of generalized commutators of multilinear fractional singular integral operators in \cite{CenSong2412}. The key improvements are: 1. We replace pointwise…

Classical Analysis and ODEs · Mathematics 2025-05-27 Xi Cen

Let $\Omega$ be homogeneous of degree zero, integrable on $S^{d-1}$ and have mean value zero, $T_{\Omega}$ be the homogeneous singular integral operator with kernel $\frac{\Omega(x)}{|x|^d}$ and $T_{\Omega}^*$ be the maximal operator…

Classical Analysis and ODEs · Mathematics 2023-08-17 Xiangxing Tao , Guoen Hu

In this paper, we prove bilinear sparse domination bounds for a wide class of Fourier integral operators of general rank, as well as oscillatory integral operators associated to H\"ormander symbol classes $S^m_{\rho,\delta}$ for all…

Classical Analysis and ODEs · Mathematics 2023-09-15 Tobias Mattsson

In this paper, we study the boundedness properties of the (dyadic) maximal bilinear operator associated with rough homogeneous kernels on $\mathbb{R}$. We establish sharp $L^{p_1}(\mathbb{R}) \times L^{p_2}(\mathbb{R}) \to…

Classical Analysis and ODEs · Mathematics 2025-10-23 Stefanos Lappas , Bae Jun Park

Using the Calder\'on-Zygmund decomposition, we give a novel and simple proof that $L^2$ bounded dyadic shifts admit a domination by positive sparse forms with linear growth in the complexity of the shift. Our estimate, coupled with…

Classical Analysis and ODEs · Mathematics 2017-01-27 Amalia Culiuc , Francesco Di Plinio , Yumeng Ou

We consider homogeneous singular kernels, whose angular part is bounded, but need not have any continuity. For the norm of the corresponding singular integral operators on the weighted space $L^2(w)$, we obtain a bound that is quadratic in…

Classical Analysis and ODEs · Mathematics 2015-10-21 Tuomas P. Hytönen , L. Roncal , Olli Tapiola

In this paper we provide weighted estimates for rough operators, including rough homogeneous singular integrals $T_\Omega$ with $\Omega\in L^\infty(\mathbb{S}^{n-1})$ and the Bochner-Riesz multiplier at the critical index $B_{(n-1)/2}$.…

Classical Analysis and ODEs · Mathematics 2019-10-04 Kangwei Li , Carlos Pérez , Israel P. Rivera-Ríos , Luz Roncal

In this paper, we study the behavior of the weighted composition operators acting on Bergman spaces defined on strictly pseudoconvex domains via the sparse domination technique from harmonic analysis. As a byproduct, we also prove a…

Complex Variables · Mathematics 2021-04-27 Bingyang Hu , Zhenghui Huo

We introduce the so called convex body valued sparse operators, which generalize the notion of sparse operators to the case of spaces of vector valued functions. We prove that Calder\'on--Zygmund operators as well as Haar shifts and…

Classical Analysis and ODEs · Mathematics 2017-05-22 Fedor Nazarov , Stefanie Petermichl , Sergei Treil , Alexander Volberg
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