Regularity estimates of fractional heat semigroups related with uniformly elliptic operators

Honglei Shi, Pengtao Li, Kai Zhao

Let $L=-\mathrm{div}(A(x)\cdot \nabla )+V(x)$ be a second-order uniformly elliptic operator on ${\mathbb{R}}^n$ $(n\ge 3)$, where $A(x)$ is a real symmetric matrix satisfying…