Trace operator on H 1 ($\Omega$) for general open bounded domains

Robert Eymard, Thierry Gallouët, David Maltese +1

In the case of any bounded open set $\Omega$ $\subset$ R d with boundary $\partial$$\Omega$, we first construct a directional trace in any direction $\theta$ of the unit sphere, for any u $\in$ L…