Quasilinear Venttsel BVPs with discontinuous data

We will present some very recent results regarding the regularity and solvability theory of second-order quasilinear elliptic equations with discontinuous coefficients coupled with boundary conditions of Venttsel type, given in terms of second-order quasilinear operators with discontinuous data.
The results are obtained in collaboration with Darya Apushkinskaya (Moscow), Alexander Nazarov (St. Petersburg) and Lubomira Softova (Salerno).