%0 Journal Article
%T Multiple periodic solutions for a fourth-order discrete Hamiltonian system
%A Jianwen Zhou
%A Yongkun Li
%J Surveys in Mathematics and its Applications
%D 2010
%I University Constantin Brancusi of Targu-Jiu
%X By means of a three critical points theorem proposed by Brezis and Nirenberg and a general version of Mountain Pass Theorem, we obtain some multiplicity results for periodic solutions of a fourth-order discrete Hamiltonian system ¦¤4u(t-2)+  F(t,u(t))=0 for all t¡Ê Z.
%K Discrete Hamiltonian systems
%K Periodic solutions
%K Critical points
%U http://www.utgjiu.ro/math/sma/v05/p25.pdf