English

$L^p$ boundedness of non-homogeneous Littlewood-Paley $g^*_{\lambda,\mu}$-function with non-doubling measures

Classical Analysis and ODEs 2016-05-17 v1

Abstract

It is well-known that the LpL^p boundedness and weak (1,1)(1,1) estiamte (λ>2)(\lambda>2) of the classical Littlewood-Paley gλg_{\lambda}^{*}-function was first studied by Stein, and the weak (p,p)(p,p) (p>1)(p>1) estimate was later given by Fefferman for λ=2/p\lambda=2/p. In this paper, we investigated the Lp(μ)L^p(\mu) boundedness of the non-homogeneous Littlewood-Paley gλ,μg_{\lambda,\mu}^{*}-function with non-convolution type kernels and a power bounded measure μ\mu: gλ,μ(f)(x)=(R+n+1(tt+xy)mλθtμf(y)2dμ(y)dttm+1)1/2, xRn, λ>1, g_{\lambda,\mu}^*(f)(x) = \bigg(\iint_{{\mathbb R}^{n+1}_{+}} \Big(\frac{t}{t + |x - y|}\Big)^{m \lambda} |\theta_t^\mu f(y)|^2 \frac{d\mu(y) dt}{t^{m+1}}\bigg)^{1/2},\ x \in {\mathbb R}^n,\ \lambda > 1, where θtμf(y)=Rnst(y,z)f(z)dμ(z)\theta_t^\mu f(y) = \int_{{\mathbb R}^n} s_t(y,z) f(z) d\mu(z), and sts_t is a non-convolution type kernel. Based on a big piece prior boundedness, we first gave a sufficient condition for the Lp(μ)L^p(\mu) boundedness of gλ,μg_{\lambda,\mu}^*. This was done by means of the non-homogeneous good lambda method. Then, using the methods of dyadic analysis, we demonstrated a big piece global TbTb theorem. Finally, we obtaind a sufficient and necessary condition for Lp(μ)L^p(\mu) boundedness of gλ,μg_{\lambda,\mu}^*-function. It is worth noting that our testing conditions are weak (1,1)(1,1) type with respect to measures.

Keywords

Cite

@article{arxiv.1605.04649,
  title  = {$L^p$ boundedness of non-homogeneous Littlewood-Paley $g^*_{\lambda,\mu}$-function with non-doubling measures},
  author = {Mingming Cao and Qingying Xue},
  journal= {arXiv preprint arXiv:1605.04649},
  year   = {2016}
}

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32 pages