We establish the well-posedness of the nonlocal mean curvature flow of order ${ \alpha\in(0,1)}$ for periodic graphs on $\mathbb{ R}^n$ in all subcritical little H\"older spaces ${ \rm h}^{ 1+\beta}(\mathbb{ T}^n)$ with $\beta\in(0,1)$. Furthermore, we prove that if the solution is initially sufficiently close to its integral mean in ${ \rm h}^{ 1+\beta}(\mathbb{ T}^n)$, then it exists globally in time and converges exponentially fast towards a constant. The proofs rely on the reformulation of the equation as a quasilinear evolution problem, which is shown to be of parabolic type by a direct localization approach, and on abstract parabolic theories for such problems.
Categories: math.AP