Acta mathematica scientia,Series A ›› 2013, Vol. 33 ›› Issue (5): 894-905.

• Articles • Previous Articles     Next Articles

Periodic Solutions for the First Order Hamiltonian System with Linear Part

 ZHANG Xing-Yong   

  1. Department of |Mathematics, Faculty of Science, Kunming University of Science and Technology, Kunming 650500
  • Received:2011-10-21 Revised:2013-02-13 Online:2013-10-25 Published:2013-10-25
  • Supported by:

    昆明理工大学人才培养项目(KKSY201207032)资助.

Abstract:

In this paper, we consider the existence and multiplicity of periodic solutions for the first order Hamiltonian system with linear part by using the minimax methods. When the linear part is definite, under weaker condition than known ones, by using the generalized Mountain Pass Lemma, we obtain the system has at least one nonconstant periodic solution. Moreover, when the potential is even, by using the Fountain Theorem, we obtain that system has infinitely many nonconstant periodic solutions.

Key words: Hamiltonian system, Periodic solution, Critical point,  Generalized Mountain Pass Lemma, Fountain Theorem

CLC Number: 

  • 37J45
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