On the existence of weak solutions for p , q -Laplacian systems with weights. Miyagaki, Olimpio H.; Rodrigues, Rodrigo S. — 2008 Electronic Journal of Differential Equations (EJDE) [electronic only]
A biharmonic elliptic problem with dependence on the gradient and the Laplacian. Carrião, Paulo C.; Faria, Luiz F.O.; Miyagaki, Olímpio H. — 2009 Electronic Journal of Differential Equations (EJDE) [electronic only]