scholarly journals Existence of periodic solutions for nonautonomous second-order discrete Hamiltonian systems

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
Da-Bin Wang ◽  
Hua-Fei Xie ◽  
Wen Guan
2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Dezhu Chen ◽  
Binxiang Dai

We study the existence of periodic solutions of some second-order Hamiltonian systems with impulses. We obtain some new existence theorems by variational methods.


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