English

Sparse domination and weighted estimates for rough bilinear singular integrals

Classical Analysis and ODEs 2020-09-08 v1

Abstract

Let r>43r>\frac{4}{3} and let ΩLr(S2n1)\Omega \in L^{r}(\mathbb{S}^{2n-1}) have vanishing integral. We show that the bilinear rough singular integral TΩ(f,g)(x)=p.v.RnRnΩ((y,z)/(y,z))(y,z)2nf(xy)g(xz)dydz,T_{\Omega}(f,g)(x)= \textrm{p.v.} \int_{\mathbb{R}^n}\int_{\mathbb{R}^n}\frac{\Omega((y,z)/|(y,z)|)}{|(y,z)|^{2n}}f(x-y)g(x-z)\,dydz, satisfies a sparse bound by (p,p,p)(p,p,p)-averages, where pp is bigger than a certain number explicitly related to rr and nn. As a consequence we deduce certain quantitative weighted estimates for bilinear homogeneous singular integrals associated with rough homogeneous kernels.

Cite

@article{arxiv.2009.02456,
  title  = {Sparse domination and weighted estimates for rough bilinear singular integrals},
  author = {Loukas Grafakos and Zhidan Wang and Qingying Xue},
  journal= {arXiv preprint arXiv:2009.02456},
  year   = {2020}
}

Comments

22 pages

R2 v1 2026-06-23T18:19:50.548Z