Abstract
In this paper, by using a decomposition technique to estimate the energy (the value of the functional associated with the problem) of a solution in terms of the minimal period of the solution, we give new sufficient conditions for the existence of subharmonic solutions with prescribed minimal period of Hamiltonian systems. Our results improve some known results in the literature.
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Dedicated to Professor Zhifen Zhang in the occasion of her 80th birthday
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Yu, J. Subharmonic Solutions with Prescribed Minimal Period of a Class of Nonautonomous Hamiltonian Systems. J Dyn Diff Equat 20, 787–796 (2008). https://doi.org/10.1007/s10884-008-9118-1
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DOI: https://doi.org/10.1007/s10884-008-9118-1