Sharp bilinear estimates for maximal singular integrals with kernels in weighted $L^q$ spaces

Fuente: arXiv
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Main Authors: Lappas, Stefanos, Park, Bae Jun
Format: Preprint
Published: 2025
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author Lappas, Stefanos
Park, Bae Jun
author_facet Lappas, Stefanos
Park, Bae Jun
contents 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 $L^{p_1}(\mathbb{R}) \times L^{p_2}(\mathbb{R}) \to L^{p}(\mathbb{R})$ estimates in the full quasi-Banach range of exponents $1 < p_1, p_2 < \infty$ and $1/2 < p < \infty$. Our approach extends and unifies several recent contributions, including those of Honzík, the first author, and Slavíkova, as well as the second author in the bilinear and in the one-dimensional settings, by allowing the angular component $Ω$ of the kernel to belong to weighted $L^q$-spaces on $\mathbb{S}^1$.
format Preprint
id arxiv_https___arxiv_org_abs_2510_19184
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Sharp bilinear estimates for maximal singular integrals with kernels in weighted $L^q$ spaces
Lappas, Stefanos
Park, Bae Jun
Classical Analysis and ODEs
42B20, 42B25, 47H60
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 $L^{p_1}(\mathbb{R}) \times L^{p_2}(\mathbb{R}) \to L^{p}(\mathbb{R})$ estimates in the full quasi-Banach range of exponents $1 < p_1, p_2 < \infty$ and $1/2 < p < \infty$. Our approach extends and unifies several recent contributions, including those of Honzík, the first author, and Slavíkova, as well as the second author in the bilinear and in the one-dimensional settings, by allowing the angular component $Ω$ of the kernel to belong to weighted $L^q$-spaces on $\mathbb{S}^1$.
title Sharp bilinear estimates for maximal singular integrals with kernels in weighted $L^q$ spaces
topic Classical Analysis and ODEs
42B20, 42B25, 47H60
url https://arxiv.org/abs/2510.19184