Kernels of trace operators via fine continuity

Michael Hinz, Simon N. Chandler-Wilde, David P. Hewett

Given a closed subset $\Gamma$ of ${\mathbb{R}}^n$ that is the support of a measure $\mu$, we study the kernels of trace operators from fractional Sobolev spaces $H_p^{\alpha }({\mathbb{R}}^n)$ into…