Abstract
We first establish Maslov index for non-canonical Hamiltonian system by using symplectic transformation for Hamiltonian system. Then the existence of multiple periodic solutions for the non-canonical Hamiltonian system is obtained by applying the Maslov index and Morse theory. As an application of the results, we study a class of non-autonomous differential delay equation which can be changed to non-canonical Hamiltonian system and obtain the existence of multiple periodic solutions for the equation by employing variational method.
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Cheng, R., Xu, J. & Zhang, F. Multiple periodic solutions for non-canonical Hamiltonian systems with application to differential delay equations. Sci. China Math. 57, 1625–1638 (2014). https://doi.org/10.1007/s11425-014-4829-8
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DOI: https://doi.org/10.1007/s11425-014-4829-8