%0 Journal Article %T Existence and Multiplicity of Solutions for Noncoercive Neumann Problems with p-Laplacian %A Gasiński, Leszek %A Papageorgiou, Nikolaos S. %J Schedae Informaticae %V 2012 %R 10.4467/20838476SI.12.002.0812 %N Volume 21 %P 27-40 %K Palais-Smale condition, noncoercive functional, second deformation theorem %@ 1732-3916 %D 2012 %U https://ejournals.eu/en/journal/schedae-informaticae/article/existence-and-multiplicity-of-solutions-for-noncoercive-neumann-problems-with-p-laplacian %X We consider a nonlinear Neumann elliptic equation driven by the p-Laplacian and a Carathéodory perturbation. The energy functional of the problem need not be coercive. Using variational methods we prove an existence theorem and a multiplicity theorem, producing two nontrivial smooth solutions. Our formulation incorporates strongly resonant equations..