The square root problem for second order, divergence form operators with mixed boundary conditions on $L^p$

Pascal Auscher, Nadine Badr, Robert Haller-Dintelmann +1

We show that, under general conditions, the operator $(-\nabla \cdot \mu \nabla +1{)}^{1/2}$ with mixed boundary conditions provides a topological isomorphism between $W^{1,p…