English

$L^p(\mathbb{R}^d)$ boundedness for the Calder\'on commutator with rough kernel

Classical Analysis and ODEs 2022-08-26 v2

Abstract

Let kNk\in\mathbb{N}, Ω\Omega be homogeneous of degree zero, integrable on Sd1S^{d-1} and have vanishing moment of order kk, aa be a function on Rd\mathbb{R}^d such that aL(Rd)\nabla a\in L^{\infty}(\mathbb{R}^d), and TΩ,a;kT_{\Omega,\,a;k} be the dd-dimensional Calder\'on commutator defined by TΩ,a;kf(x)=p.v.RdΩ(xy)xyd+k(a(x)a(y))kf(y)dy.T_{\Omega,\,a;k}f(x)={\rm p.\,v.}\int_{\mathbb{R}^d}\frac{\Omega(x-y)}{|x-y|^{d+k}}\big(a(x)-a(y)\big)^kf(y){d}y. In this paper, the authors prove that if supζSd1Sd1Ω(θ)logβ(1θζ)dθ<,\sup_{\zeta\in S^{d-1}}\int_{S^{d-1}}|\Omega(\theta)|\log ^{\beta} \big(\frac{1}{|\theta\cdot\zeta|}\big)d\theta<\infty, with β(1,]\beta\in(1,\,\infty], then for 2β2β1<p<2β\frac{2\beta}{2\beta-1}<p<2\beta, TΩ,a;kT_{\Omega,\,a;\,k} is bounded on Lp(Rd)L^p(\mathbb{R}^d).

Keywords

Cite

@article{arxiv.2203.11541,
  title  = {$L^p(\mathbb{R}^d)$ boundedness for the Calder\'on commutator with rough kernel},
  author = {Jiecheng Chen and Guoen Hu and Xiangxing Tao},
  journal= {arXiv preprint arXiv:2203.11541},
  year   = {2022}
}

Comments

20 pages

R2 v1 2026-06-24T10:21:38.593Z