%0 Journal Article
%T Periodic solutions for second order Hamiltonian systems
%A Giuseppina D'Agu¨¬
%A Roberto Livrea
%J Le Matematiche
%D 2011
%I University of Catania
%X In this paper we present some recent multiplicity results for a class of second order Hamiltonian systems. Exploiting the variational structure of the problem, it will be shown how the existence of multiple, even infinitely many, periodic solutions can be assured.
%K Second order Hamiltonian systems
%K Eigenvalue problem
%K Periodic solutions
%K Critical points
%K Multiple solutions
%U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/861