On an evolutionary equation involving the nonlocal infinity Laplacian

Abstract: We study the evolutionary equation $$\frac{\partial u}{\partial t} = (\mathcal{L}<em>{\infty})^αu \quad \text{in} \quad Ω,$$ where $(\mathcal{L}</em>{\infty})<sup>αu$ denotes a nonlocal infinity Laplacian acting on the function $u$, $0&lt;α\leq 1$ and $Ω$ is a bounded open set in $\mathbb{R}<sup>{n+1}$. We prove existence and uniqueness using Perron's method for the Dirichlet problem when $Ω$ is a cylinder and $0<α<1$.