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arXiv · 2009.02456

Sparse domination and weighted estimates for rough bilinear singular integrals

Loukas Grafakos·Zhidan Wang·Qingying Xue
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Abstract

Let $r>\frac{4}{3}$ and let $Ω\in L^{r}(\mathbb{S}^{2n-1})$ have vanishing integral. We show that the bilinear rough singular integral $$T_Ω(f,g)(x)= \textrm{p.v.} \int_{\mathbb{R}^n}\int_{\mathbb{R}^n}\frac{Ω((y,z)/|(y,z)|)}{|(y,z)|^{2n}}f(x-y)g(x-z)\,dydz,$$ satisfies a sparse bound by $(p,p,p)$-averages, where $p$ is bigger than a certain number explicitly related to $r$ and $n$. As a consequence we deduce certain quantitative weighted estimates for bilinear homogeneous singular integrals associated with rough homogeneous kernels.

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Loukas Grafakos, Zhidan Wang, Qingying Xue. 2020-09-05. Sparse domination and weighted estimates for rough bilinear singular integrals. https://arxiv.org/abs/2009.02456

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