On maximum principles for radial solutions to nonlinear elliptic PDE's via Opial-type inequalities

Agnieszka Kałamajska, Anna Kosiorek

We consider degenerated nonlinear PDE of elliptic type: $$-\mathrm{div}(a(|x|)|\nabla w(x){|}^{p-2}\nabla w(x))+h(|x|,w(x),⟨\nabla w(x),\frac{x}{|x|}⟩)=\varphi (w(x)),$$ w…