Multiple periodic solutions for superquadratic and subquadratic second-order Hamiltonian systems
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Abstract
In this paper, a class of second-order Hamiltonian systems is studied. Under the assumption of superquadratic and subquadratic for the nonlinear term, the existence of six periodic solutions and nine periodic solutions are obtained by using the variational method and space decomposition. Finally, two examples are given to verify the feasibility of the new criteria.
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- last seen: 2026-05-19T01:45:01.086888+00:00