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Related papers: On the bilinear Bochner-Riesz problem at critical …

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In this paper we establish weighted estimates for the bilinear Bochner-Riesz operator $\mathcal B^{\alpha}$ at the critical index $\alpha=n-\frac{1}{2}$ with respect to bilinear weights.

Classical Analysis and ODEs · Mathematics 2020-07-21 K. Jotsaroop , Saurabh Shrivastava , Kalachand Shuin

In this article we have investigated $L^{p}$ boundedness of the multilinear maximal Bochner--Riesz means and the corresponding square function. We have exploited the ideas given in the paper "Maximal estimates for bilinear Bochner--Riesz…

Classical Analysis and ODEs · Mathematics 2024-09-02 Kalachand Shuin

We consider Bochner-Riesz means on weighted $L^p$ spaces, at the critical index $\lambda(p)=d(\frac 1p-\frac 12)-\frac 12$. For every $A_1$-weight we obtain an extension of Vargas' weak type $(1,1)$ inequality in some range of $p>1$. To…

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

We establish improved and sharp $L^p$ estimates for the maximal bilinear Bochner-Riesz means in all dimensions $n\geq 1$. This work extends the results proved by Jeong and Lee \cite{JL}. We also recover the known results for the bilinear…

Classical Analysis and ODEs · Mathematics 2021-01-26 Jotsaroop Kaur , Saurabh Shrivastava

We improve the range of indices when the multilinear Bochner-Riesz means converges pointwisely. We obtain this result by establishing the $L^p$ estimates and weighted estimates of $k$-linear maximal Bochner-Riesz operators inductively,…

Classical Analysis and ODEs · Mathematics 2024-12-03 Danqing He , Kangwei Li , Jiqiang Zheng

In this paper we introduce Stein's square function associated with bilinear Bochner-Riesz means and investigate its $L^p$ boundedness properties. Further, we discuss several applications of the square function in the context of bilinear…

Classical Analysis and ODEs · Mathematics 2022-06-07 Surjeet Singh Choudhary , K. Jotsaroop , Saurabh Shrivastava , Kalachand Shuin

We prove new weighted decoupling estimates. As an application, we give an improved sufficient condition for almost everywhere convergence of the Bochner-Riesz means of arbitrary $L^p$ functions for $1<p<2$ in dimensions 2 and 3.

Classical Analysis and ODEs · Mathematics 2025-10-13 Jongchon Kim

We introduce some new functions spaces to investigate some problems at or beyond endpoint. First, we prove that Bochner-Riesz means $B_R^\lambda$ are bounded from some subspaces of $L^p_{|x|^\alpha}$ to $L^p_{|x|^\alpha}$ for $…

Classical Analysis and ODEs · Mathematics 2011-03-04 Shunchao Long

We study the maximal estimates for the bilinear spherical average and the bilinear Bochner-Riesz operator. Firstly, we obtain $L^p\times L^q \to L^r$ estimates for the bilinear spherical maximal function on the optimal range. Thus, we…

Classical Analysis and ODEs · Mathematics 2019-11-15 Eunhee Jeong , Sanghyuk Lee

This paper is devoted to the study of $L^{p_1} \times L^{p_2}$ to $L^{p}$ boundedness of the bilinear Bochner-Riesz mean $\mathcal{B}^{\alpha}$ associated with the Grushin operator $\mathcal{L} = -\Delta_{x'} - |x'|^2 \Delta_{x''}$ on…

Analysis of PDEs · Mathematics 2025-06-17 Sayan Bagchi , Md Nurul Molla , Joydwip Singh

In this paper, we develop a thorough analysis of the boundedness properties of the maximal operator for the Bochner-Riesz means related to the Fourier-Bessel expansions. For this operator, we study weighted and unweighted inequalities in…

Functional Analysis · Mathematics 2012-07-25 Ó. Ciaurri , L. Roncal

We prove that the bilinear maximal Bochner-Riesz operator $T_*^\lambda$ is bounded from $L^{p_1}(\mathbb R^n)\times L^{p_2}(\mathbb R^n)$ to $L^p(\mathbb R^n)$ for appropriate $(p_1,p_2,p)$ when $\lambda>(4n+3)/5$.

Classical Analysis and ODEs · Mathematics 2016-07-14 Danqing He

In this paper, we establish the full $L_p$ boundedness of noncommutative Bochner-Riesz means on two-dimensional quantum tori, which completely resolves an open problem raised in \cite{CXY13} in the sense of the $L_p$ convergence for two…

Operator Algebras · Mathematics 2021-10-13 Xudong Lai

We study $L^p\times L^q\to L^r$ bounds for the bilinear Bochner-Riesz operator $\mathcal{B}^\alpha$, $\alpha>0$ in $\mathbb{R}^d,$ $d\ge2$, which is defined by \[ {\mathcal B}^{\alpha}(f,g)=\iint_{\mathbb{R}^d\times\mathbb{R}^d} e^{2\pi i…

Classical Analysis and ODEs · Mathematics 2017-11-08 Eunhee Jeong , Sanghyuk Lee , Ana Vargas

In this paper we introduce bilinear Bochner-Riesz means associated with convex domains in the plane $\mathbb R^2$ and study their $L^p-$boundedness properties for a wide range of exponents. One of the important aspects of our proof involves…

Classical Analysis and ODEs · Mathematics 2023-05-09 Ankit Bhojak , Surjeet Singh Choudhary , Saurabh Shrivastava

We prove a weighted norm inequality for the maximal Bochner--Riesz operator and the associated square-function. This yields new $L^p(R^d)$ bounds on classes of radial Fourier multipliers for $p\ge 2+4/d$ with $d\ge 2$, as well as space-time…

Classical Analysis and ODEs · Mathematics 2014-02-26 Sanghyuk Lee , Keith M. Rogers , Andreas Seeger

In this article, we address endpoint issues for the bilinear spherical maximal functions. We obtain borderline restricted weak type estimates for the well studied bilinear spherical maximal function…

Classical Analysis and ODEs · Mathematics 2024-01-17 Ankit Bhojak , Surjeet Singh Choudhary , Saurabh Shrivastava , Kalachand Shuin

Results analogous to those proved by Rubio de Francia are obtained for a class of maximal functions formed by dilations of bilinear multiplier operators of limited decay. We focus our attention to $L^2\times L^2\to L^1$ estimates. We…

Classical Analysis and ODEs · Mathematics 2018-04-27 Loukas Grafakos , Danqing He , Petr Honzík

In this paper we prove several weighted estimates for bilinear fractional integral operators and their commutators with BMO functions. We also prove maximal function control theorem for these operators, that is, we prove the weighted $L^p$…

Classical Analysis and ODEs · Mathematics 2016-01-29 Cong Hoang , Kabe Moen

Let $w$ be a Muckenhoupt weight and $H^p_w(\mathbb R^n)$ be the weighted Hardy spaces. In this paper, by using the atomic decomposition of $H^p_w(\mathbb R^n)$, we will show that the Bochner-Riesz operators $T^\delta_R$ are bounded from…

Classical Analysis and ODEs · Mathematics 2012-07-26 Hua Wang
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