Hardy Spaces Associated with Some Anisotropic Mixed-Norm Herz Spaces and Their Applications

TL;DR

This paper introduces new anisotropic mixed-norm Herz and Herz-Hardy spaces, establishing their properties, characterizations, and boundedness of key operators, advancing harmonic analysis in anisotropic and mixed-norm contexts.

Contribution

It defines and analyzes anisotropic mixed-norm Herz and Herz-Hardy spaces, including their properties, characterizations, and operator boundedness, extending harmonic analysis tools.

Findings

Established basic properties of anisotropic mixed-norm Herz spaces.

Proved boundedness of Calderón-Zygmund operators on these spaces.

Developed atomic and molecular decompositions for Herz-Hardy spaces.

Abstract

In this paper, we introduce anisotropic mixed-norm Herz spaces $\dot K_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$ and $K_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$ and investigate some basic properties of those spaces. Furthermore, establishing the Rubio de Francia extrapolation theory, which resolves the boundedness problems of Calder\'on-Zygmund operators and fractional integral operator and their commutators, on the space $\dot K_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$ and the space $K_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$. Especially, the Littlewood-Paley characterizations of anisotropic mixed-norm Herz spaces also are gained. As the generalization of anisotropic mixed-norm Herz spaces, we introduce anisotropic mixed-norm Herz-Hardy spaces $H\dot K_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$ and $HK_{\vec{q}, \vec{a}}^{\alpha, p}(\mathbb R^n)$, on which atomic decomposition and molecular decomposition are obtained. Moreover, we gain the boundedness of classical Calder\'on-Zygmund operators.