Variational and Hemivariational Inequalities - Theory, Methods and Applications D. Goeleven, Dumitru Motreanu E-Book (pdf)

Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems Dumitru Motreanu, Viorica Venera Motreanu, Nikolaos Papageorgiou E-Book (pdf)

Competing Operators and Their Applications to Boundary Value Problems Marek Galewski, Dumitru Motreanu E-Book (pdf)