Boundedness of Fractional Integrals on Hardy Spaces Associated with Ball Quasi-Banach Function Spaces

Yiqun Chen, Hongchao Jia, Dachun Yang

Let $X$ be a ball quasi-Banach function space on ${\mathbb{R}}^n$ and $H_X({\mathbb{R}}^n)$ the Hardy space associated with $X$, and let $\alpha \in (0,n)$ and $\beta \in (1,\infty )$. In this art…