Characterizations of Variable Exponent Hardy Spaces via Riesz Transforms

Dachun Yang, Ciqiang Zhuo, Eiichi Nakai

Let $p(\cdot ):{\mathbb{R}}^n\to (0,\infty )$ be a variable exponent function satisfying that there exists a constant $p_0\in (0,p_{-})$, where $p_-:=\mathop{\mathrm {ess\,inf}}_{x\in \ma…