Refined regularity for nonlocal elliptic equations and applications

Wenxiong Chen, Congming Li, Leyun Wu +1

In this paper, we establish refined regularity estimates for nonnegative solutions to the fractional Poisson equation $$(-\hat{I}”{)}^{s}u(x)=f(x),x\in B_1(0).$$ Specifically, we ha…