Sun, Juntao; Chen, Haibo; Nieto, Juan J. Infinitely many solutions for second-order Hamiltonian system with impulsive effects. (English) Zbl 1225.37070 Math. Comput. Modelling 54, No. 1-2, 544-555 (2011). Summary: We study the existence of infinitely many solutions for a class of second-order impulsive Hamiltonian systems. By using the variational methods, we give some new criteria to guarantee that the impulsive Hamiltonian systems have infinitely many solutions under the assumptions that the nonlinear term satisfies superquadratics, asymptotically quadratic and subquadratics, respectively. Finally, some examples are presented to illustrate our main results. Cited in 41 Documents MSC: 37J45 Periodic, homoclinic and heteroclinic orbits; variational methods, degree-theoretic methods (MSC2010) 34B37 Boundary value problems with impulses for ordinary differential equations 47J30 Variational methods involving nonlinear operators Keywords:Hamiltonian systems; impulsive effects; variational methods; critical points PDF BibTeX XML Cite \textit{J. Sun} et al., Math. Comput. Modelling 54, No. 1--2, 544--555 (2011; Zbl 1225.37070) Full Text: DOI References: [1] Mawhin, J.; Willem, M., Critical Point Theory and Hamiltonian Systems (1989), Springer · Zbl 0676.58017 [2] Long, Y., Nonlinear oscillations for classical Hamiltonian systems with bi-even subquadratic potentials, Nonlinear Anal. TMA, 25, 1665-1671 (1995) · Zbl 0824.34042 [3] Tang, C., Periodic solutions for nonautonomous second order systems with sublinear nonlinearity, Proc. Amer. Math. 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