@mastersthesis {2016, title = {Qualitative properties and construction of solutions to some semilinear elliptic PDEs}, year = {2016}, school = {SISSA}, abstract = {This thesis is devoted to the study of elliptic equations. On the one hand, we study some qualitative properties, such as symmetry of solutions, on the other hand we explicitly construct some solutions vanishing near some fixed manifold. The main techniques are the moving planes method, in order to investigate the qualitative properties and the Lyapunov-Schmidt reduction.}, keywords = {moving planes method, maximum principle, Lyapunov-Schmidt reduction, Willmore surfaces, Otha-Kawasaki functional}, author = {Matteo Rizzi} }