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Infinitely many periodic solutions for subquadratic second-order Hamiltonian systems

Hua Gu* and Tianqing An

Author Affiliations

College of Science, Hohai University, Nanjing, 210098, China

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Boundary Value Problems 2013, 2013:16  doi:10.1186/1687-2770-2013-16

Published: 6 February 2013


In this paper, we investigate the existence of infinitely many periodic solutions for a class of subquadratic nonautonomous second-order Hamiltonian systems by using the variant fountain theorem.