Infinitely Many Periodic Solutions for Nonautonomous Sublinear Second-Order Hamiltonian Systems
Keyword(s):
Two sequences of distinct periodic solutions for second-order Hamiltonian systems with sublinear nonlinearity are obtained by using the minimax methods. One sequence of solutions is local minimum points of functional, and the other is minimax type critical points of functional. We do not assume any symmetry condition on nonlinearity.
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