A class of elliptic mixed boundary value problems with $(p,q)$-Laplacian: existence, comparison and optimal control

Shengda Zeng, Stanislaw Migorski, Domingo A. Tarzia +2

The paper deals with two nonlinear elliptic equations with $(p,q)$-Laplacian and the Dirichlet-Neumann-Dirichlet (DND) boundary conditions, and Dirich\-let-Neu\-mann-Neumann (DNN)…