scholarly journals Functional Model and Spectral Analysis of Discrete Singular Hamiltonian System

2019 ◽  
Vol 23 (3) ◽  
pp. 653-673 ◽  
Author(s):  
Bilender P. Allahverdiev
2002 ◽  
Vol 51 (6) ◽  
pp. 1389-1426 ◽  
Author(s):  
Yuri A. Kuperin ◽  
Roman V. Romanov ◽  
Serguei N. Naboko

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Yi Liao

By use of the Cerami-Palais-Smale condition, we generalize the classical Weierstrass minimizing theorem to the singular case by allowing functions which attain infinity at some values. As an application, we study certain singular second-order Hamiltonian systems with strong force potential at the origin and show the existence of new periodic solutions with fixed periods.


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