English

The Real Characterization of $H_{\lambda}^p(\mathbb R_+^2)$ for $\frac{2\lambda}{2\lambda+1}<p\leq1$

Classical Analysis and ODEs 2022-06-30 v2

Abstract

For p>p0=2λ2λ+1p>p_0=\frac{2\lambda}{2\lambda+1} with λ>0\lambda>0, the Hardy space Hλp(R+2)H_{\lambda}^p(\mathbb R_+^2) associated with the Dunkl transform Fλ\mathcal{F}_\lambda and the Dunkl operator DD on the real line R\mathbb R, where Dxf(x)=f(x)+λx[f(x)f(x)]D_xf(x)=f'(x)+\frac{\lambda}{x}[f(x)-f(-x)], is the set of functions F=u+ivF=u+iv on the upper half plane R+2={(x,y):xR,y>0}\mathbb R^2_+=\left\{(x, y): x\in\mathbb R, y>0\right\}, satisfying λ\lambda-Cauchy-Riemann equations: Dxuyv=0 D_xu-\partial_y v=0, yu+Dxv=0\partial_y u +D_xv=0, and supy>0RF(x+iy)px2λdx<\sup\limits_{y>0}\int_{\mathbb R}|F(x+iy)|^p|x|^{2\lambda}dx<\infty. In this paper, we will give a further characterization of Hλp(R+2)H_{\lambda}^p(\mathbb R_+^2) in \cite{ZhongKai Li 3}. We prove the inequality FHλp(R+2)cuLλp\|F\|_{H_{\lambda}^p(\mathbb R_+^2)}\leq c\|u_{\nabla}^*\|_{L^p_{\lambda}}, which gives a Real Characterization of the class Hλp(R+2)H_{\lambda}^p(\mathbb R_+^2) for 2λ2λ+1<p1\frac{2\lambda}{2\lambda+1}<p\leq1 as a main result.

Keywords

Cite

@article{arxiv.2106.05845,
  title  = {The Real Characterization of $H_{\lambda}^p(\mathbb R_+^2)$ for $\frac{2\lambda}{2\lambda+1}<p\leq1$},
  author = {ZhuoRan Hu},
  journal= {arXiv preprint arXiv:2106.05845},
  year   = {2022}
}

Comments

arXiv admin note: text overlap with arXiv:2004.01777

R2 v1 2026-06-24T03:03:52.859Z