Variational and Topological Methods for Nonlocal Fractional Periodic Equations

A very interesting area of nonlinear analysis lies in the study of elliptic equations involving fractional operators. Recently, a great attention has been focused on these problems, both for the pure mathematical research and in view of concrete real–world applications. Indeed, these types of operators appear in a quite natural way in different contexts, such as the description of several physical phenomena. In this note we study nonlieae equations involving fractional operators.