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Abstract
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Advances in Difference Equations
Volume 2007 (2007), Article ID 13916, 16 pages
doi:10.1155/2007/13916

Periodic solutions for subquadratic discrete Hamiltonian systems

Xiaoqing Deng

College of Mathematics and Econometrics, Hunan University, Changsha 410082, China

Abstract

Some existence conditions of periodic solutions are obtained for a class of nonautono mous subquadratic first-order discrete Hamiltonian systems by the minimax methods in the critical point theory.