English

A non-homogeneous local $Tb$ theorem for Littlewood-Paley $g_{\lambda}^{*}$-function with $L^p$-testing condition

Classical Analysis and ODEs 2015-07-21 v1 Analysis of PDEs

Abstract

In this paper, we present a local TbTb theorem for the non-homogeneous Littlewood-Paley gλg_{\lambda}^{*}-function with non-convolution type kernels and upper power bound measure μ\mu. We show that, under the assumptions \suppbQQ\supp b_Q \subset Q, QbQdμμ(Q)|\int_Q b_Q d\mu| \gtrsim \mu(Q) and bQLp(μ)pμ(Q)||b_Q||^p_{L^p(\mu)} \lesssim \mu(Q), the norm inequality gλ(f)Lp(μ)fLp(μ)\big\| g_{\lambda}^{*}(f) \big\|_{L^p(\mu)} \lesssim \big\| f \big\|_{L^p(\mu)} holds if and only if the following testing condition holds : supQ:cubes in \Rn1μ(Q)Q(0(Q)\Rn(tt+xy)mλθt(bQ)(y,t)2dμ(y)dttm+1)p/2dμ(x)<.\sup_{Q : cubes \ in \ \Rn} \frac{1}{\mu(Q)}\int_Q \bigg(\int_{0}^{\ell(Q)} \int_{\Rn} \Big(\frac{t}{t+|x-y|}\Big)^{m\lambda}|\theta_t(b_Q)(y,t)|^2 \frac{d\mu(y) dt}{t^{m+1}}\bigg)^{p/2} d\mu(x) < \infty. This is the first time to investigate gλg_\lambda^*-function in the simultaneous presence of three attributes : local, non-homogeneous and LpL^p-testing condition. It is important to note that the testing condition here is LpL^p type with p(1,2]p \in (1,2].

Keywords

Cite

@article{arxiv.1507.05291,
  title  = {A non-homogeneous local $Tb$ theorem for Littlewood-Paley $g_{\lambda}^{*}$-function with $L^p$-testing condition},
  author = {Mingming Cao and Qingying Xue},
  journal= {arXiv preprint arXiv:1507.05291},
  year   = {2015}
}

Comments

26 pages

R2 v1 2026-06-22T10:14:36.659Z