Dimension of divergence set of the wave equation

Seheon Ham, Hyerim Ko, Sanghyuk Lee

We consider the Hausdorff dimension of the divergence set on which the pointwise convergence ${\lim }_{t\to 0}{e}^{it\sqrt{-\Delta }}f(x)=f(x)$ fails when $f\in H^s({\mathbb{R}}^d)$…