We consider an equation in divergence form with a singular-degenerate weight \[ -\mathrm{div}(y^a A(x,y)\ abla u)=y^a f(x,y,u)\; \quad\textrm{or}\; \textrm{div}(y^aF(x,y,u))\;, \] We first study the regularity of the nodal sets of solutions in the…
We consider an equation in divergence form with a singular-degenerate weight \[ -\mathrm{div}(y^a A(x,y)\ abla u)=y^a f(x,y,u)\; \quad\textrm{or}\; \textrm{div}(y^aF(x,y,u))\;, \] We first study the regularity of the nodal sets of solutions in the…